ANN WALSH BRADLEY, J.
¶ 1. Plaintiff Ryan C. Tews seeks review of an unpublished decision of the court of appeals affirming an order of the circuit court which concluded that the statute of limitations had run and granted summary judgment in favor of the defendant, Wisconsin Electric Power Company ("WEPCo").1 Tews apparently had difficulty identifying the correct legal name of the defendant that allegedly serviced the electrical substation where the injury occurred. His original complaint named We Energies and his amended complaint instead named Wisconsin Energy [393]*393Corporation d/b/a We Energies ("Wisconsin Energy"). Both were filed within the statute of limitations. However, Tews' second amended complaint alleging WEPCo as the proper name of the defendant was filed after the statute of limitations expired. Tews contends that WEPCo is not entitled to summary judgment because his second amended complaint relates back to the date he filed his original or amended complaint.
¶ 2. The purpose of the relation-back statute, Wis. Stat. § 802.09(3),2 is to ameliorate the effect of the statute of limitations in a situation where the opposing party has received fair notice of the claim. When a defendant is added as a party after the applicable limitations period and all the requirements of the relation-back statute are satisfied, fair notice has been provided, and the added defendant has been given the full benefit of the protections that the statute of limitations was intended to provide.
¶ 3. The relation-back statute as applied here requires first that the claim asserted in the second amended complaint arose out of the same transaction, occurrence, or event set forth in the original complaint. There is no dispute that this requirement is satisfied. Second, the relation-back statute requires that within the time period provided by law for commencing an action, WEPCo received such notice of the institution of the action that it will not be prejudiced in maintaining a defense on the merits. Third, the relation-back statute requires that within the time period provided by law for commencing an action, WEPCo knew or should [394]*394have known that but for a mistake concerning the identity of the proper party, the action would have been brought against WEPCo.
¶ 4. In reviewing whether WEPCo is entitled to summary judgment, we apply well-established methodology. A court initially examines the pleadings to determine whether claims have been stated and material factual issues presented. To make a prima facie case for summary judgment, a moving defendant must show a defense that would defeat the plaintiff. If the moving party has made a prima facie case for summary judgment, the court must examine the affidavits and other proof of the opposing party to determine whether a genuine issue exists as to any material fact or whether reasonable conflicting inferences may be drawn from undisputed facts.
¶ 5. An examination of these pleadings reveals the following undisputed facts: The timing of the incident is undisputed, the location of the incident is undisputed, and that Tews actually suffered injuries as a result of contact with an "electrical part" is undisputed. Likewise, it is undisputed that WEPCo has offices at the same location as Wisconsin Energy, WEPCo has the same registered agent as Wisconsin Energy, and WEPCo has retained the services of same attorney who represented We Energies and Wisconsin Energy from the outset of the case.
¶ 6. These undisputed facts raise competing reasonable inferences. One of the reasonable inferences is that the requirements of the relation-back statute are satisfied, and that Tews' second amended complaint is therefore not barred by the statute of limitations.
¶ 7. Although WEPCo made various factual assertions in its affidavit, nothing set forth in its affidavit [395]*395resolves in WEPCo's favor the competing inferences raised by the undisputed facts in the pleadings. We therefore conclude that WEPCo is not entitled to summary judgment. Accordingly, we reverse the decision of the court of appeals.
I
¶ 8. Even though the procedural facts of this case are complex, the facts giving rise to this lawsuit are relatively straightforward. Tews spent a portion of the evening of December 30, 2004 at Lennigan's Bar in Fort Atkinson. He departed the bar on foot and headed home, taking his usual shortcut across the parking lot behind the NASCO plant. Tews alleges that he attempted to exit the parking lot through the north gate but was unable to do so because it was closed and locked. He allegedly entered an unlit, fenced-in electrical sub-station through an unlocked gate. Once in the sub-station, Tews came into contact with part of a transformer. The injuries sustained by Tews are both permanent and severe.
¶ 9. Tews filed suit on September 26, 2007. Among other defendants, he named "WE Energies" in his complaint.3 Tews alleged that We Energies is a Wisconsin corporation "with its principal place of business located at 231 West Michigan Street, Milwaukee, Wisconsin 53203." The record reflects that the complaint was served on a legal assistant authorized to accept service at 231 W. Michigan Street in Milwaukee.
¶ 10. In its answer, We Energies "den[ied] that We Energies is a company,... that it is organized and [396]*396exists under the laws of the State of Wisconsin or that it has a principal place of business at 231 West Michigan Street, Milwaukee, WI[.]" It asserted that We Energies "lacks capacity to be sued in that it is not a legal entity but merely a trade name."
¶ 11. Despite We Energies' assertion that it was not a legal entity, it retained counsel. Attorney Feldbruegge filed a notice of appearance stating that the law firm of von Briesen & Roper, S.C. had been "retained by and appear for the defendant, We Energies, in the above-entitled action[.]" It was Attorney Feldbruegge who filed the answer and a motion to dismiss, in which We Energies admitted that Tews departed Lennigan's Bar on foot, that the north gate of the parking lot was closed and locked, that Tews "contacted an electrical part," and that Tews "suffered injuries as a result of said electrical contact." On behalf of We Energies, Attorney Feldbruegge also conducted discovery.
¶ 12. On December 28, 2007, two days before the statute of limitations expired, Tews amended his complaint and named "Wisconsin Energy Corporation (d/b/a WE ENERGIES)." The amended complaint asserted that Wisconsin Energy is a Wisconsin company "with its principal place of business located at 231 West Michigan Street, Milwaukee, Wisconsin 53203." It further asserted that Wisconsin Energy "has as its registered agent, Keith H. Ecke, who is located at 231 West Michigan Street, Milwaukee, Wisconsin 53203." The amended complaint's factual allegations are nearly identical to the factual allegations set forth in Tews' initial complaint.4
[397]*397¶ 13. Attorney Feldbruegge did not file a notice of appearance for the newly named Wisconsin Energy. Rather, he filed an "amended" notice of appearance and then answered the amended complaint on behalf of Wisconsin Energy. In its answer, Wisconsin Energy admitted that it was a Wisconsin corporation with "a principal place of business located at 231 West Michigan Street, Milwaukee, WI 53203 and has as its registered agent Keith H. Ecke[.]"
¶ 14. Like the answer to the complaint against We Energies, Wisconsin Energy admitted that Tews left Lennigan's Bar on foot, that the north gate of the parking lot was closed and locked, that Tews "contacted an electrical part," and that Tews "suffered injuries as a result of said electrical contact." However, it alleged that Wisconsin Energy's business activities "are limited to that of a holding corporation" and that Wisconsin Energy "is not liable for the torts of its wholly owned subsidiaries."5
¶ 15. Several months later, two related motions were filed, one by each party. Wisconsin Energy filed a motion to dismiss, and Tews filed a motion asking the court for leave to amend his complaint for the second time to add a defendant.
¶ 16. Wisconsin Energy filed its motion to dismiss on July 31, 2008, and asserted that the motion was "based on its lack of liability for the torts of its wholly [398]*398owned subsidiaries." In an attached affidavit, the Executive Vice President of Wisconsin Energy averred that "Wisconsin Energy Corporation does not engage in the business of generation and/or distribution of electric energy but is the owner of 100% of the stock of [WEPCo]." He further identified WEPCo as "the electric utility which provides electric service to businesses and residences in the southeastern portion of the State of Wisconsin, including Fort Atkinson where the accident which is the subject matter of this action is located."
¶ 17. Tews' motion for leave to amend his complaint by adding WEPCo as a defendant was filed four days later on August 4, 2008. He asserted that under Wis. Stat. § 802.09(3),6 his second amended complaint would relate back to the date of a prior filing.
¶ 18. Throughout the briefing on the two motions, Wisconsin Energy argued that it should be dismissed as a defendant because it was not liable for WEPCo's torts, and that Tews' motion to amend his complaint by adding WEPCo as a defendant should be denied. It asserted that "there are serious impediments to the application of the relation-back doctrine here" [399]*399and therefore, the claims against WEPCo would be barred by the statute of limitations.
¶ 19. Tews countered that "WE Energies and or Wisconsin Energy Corporation knew all along that [Tews] intended to make a claim against Wisconsin Electric Power Company!.]" He further contended that WEPCo received notice of the institution of the action, would not be prejudiced in maintaining a defense on the merits, and knew or should have known that, "but for a mistake concerning its proper identity, this action would have been brought against it as well":
[WEPCo] should have been on notice of this claim as of September 26, 2007, when Plaintiff filed the original Complaint naming WE Energies as a defendant. .. and again December 28, 2007, when Plaintiff filed the Amended Complaint naming Wisconsin Energy Corporation (d/b/a WE Energies) as a defendant.
Moreover, Tews asserted, "it appears likely that [WEPCo] will utilize the same counsel as Wisconsin Energy Corporation (d/b/a WE Energies) in its defense of this action."
¶ 20. After a hearing on the two motions and other unrelated discovery disputes, the court dismissed "the parent company [Wisconsin Energy] on capacity grounds"7 and granted leave for Tews to file a second amended complaint adding WEPCo as a defendant. In its oral decision, the court expressly declined to rule on the applicability of the relation-back statute: "I'm not in a position to be able to say that the new intended party, [WEPCo], has not suffered prejudice. It's premature for me to rule on the prejudice to that new proposed party [400]*400and the 'relation back' claim.... I have no doubt, as counsel argued, that [WEPCo] will interpose those defenses."
¶ 21. Tews' second amended complaint was filed on October 29, 2008. It asserted the same location of the principal place of business and the same registered agent as Tews had previously alleged.
¶ 22. The second amended complaint alleged that WEPCo was a Wisconsin company "with its principal place of business located at 231 West Michigan Street, Milwaukee, Wisconsin 53203" and "has as its registered agent, Keith H. Ecke, who is located at 231 West Michigan Street, Milwaukee, Wisconsin 53203." The factual allegations in the second amended complaint were nearly identical to the factual allegations in Tews' original and amended complaints. On November 12, the second amended complaint was served on an employee at 231 West Michigan Street who was authorized to accept service.
¶ 23. Attorney Feldbruegge filed a notice of appearance, informing the court that von Briesen & Roper had been retained by WEPCo. WEPCo's answer denied that 231 West Michigan Street was its "principal place of business." Nevertheless, it admitted that it "has offices at 231 West Michigan Street, Milwaukee, WI 53203" and that its registered agent is Keith H. Ecke, who is located at that address.
¶ 24. As had We Energies and Wisconsin Energy, WEPCo admitted that Tews departed Lennigan's Bar on foot in the late hours of December 30, 2004, that the north gate of the parking lot was closed and locked, that Tews "contacted an electrical part," and that Tews "suffered injuries as a result of said electrical contact." As an affirmative defense, WEPCo's answer alleged that [401]*401the complaint was time barred by the statute of limitations for personal injury set forth in Wis. Stat. § 893.54.8
¶ 25. On the same day it answered the second amended complaint, WEPCo also filed a document captioned "notice of motion and motion for summary judgment." The notice provided that the motion would be heard on January 29, 2009, and that it was "supported by the pleadings already filed in this matter and the enclosed brief."
¶ 26. WEPCo's three-page brief made no argument about the relation-back statute. It simply concluded that the action was barred by the statute of limitations:
Plaintiff was injured after he climbed onto an electric substation located on private property on December 30, 2004. (2nd Am. Compl.) Plaintiff filed his Second Amended Complaint adding WEPCo on October 29, 2008. (Id.) WEPCo now files this motion for summary judgment on Plaintiffs Second Amended Complaint based on the three-year statute of limitations contained in Wis. Stat. § 893.54. As Plaintiff failed to file suit against WEPCo within three years after the date of his injury, WEPCo respectfully requests that this Court dismiss Plaintiffs claim against it as a matter of law.
WEPCo did not include any affidavits with its brief.
¶ 27. Tews responded timely with a brief in opposition to WEPCo's motion for summary judgment, asserting that his second amended complaint was not barred by the statute of limitations because it related [402]*402back to his original filings. His brief set forth several allegations about the relationship between We Energies, Wisconsin Energy, and WEPCo. Among other facts, he contended that WEPCo and Wisconsin Energy share the same registered agent and share the same principal office, located at 231 West Michigan Street, Milwaukee, Wisconsin. He asserted that WEPCo had retained the same law firm, von Briesen & Roper, S.C., and the same lead attorney, John E. Feldbruegge, as had been retained by We Energies and Wisconsin Energy.
¶ 28. Tews did not include any affidavits with his brief. Instead, he attached as "exhibits" several documents from the Wisconsin Department of Financial Institutions website.
¶ 29. On January 22 at 3:30 p.m., five business days before the hearing,9 WEPCo filed a reply and affidavit. It asserted that the burden to present evidence belonged to Tews, given that he was the party seeking the benefit of the relation-back statute. Because he had not submitted any evidence by affidavit that the second amended complaint should relate back, WEPCo contended that Tews failed to create a genuine issue of material fact.
[403]*403¶ 30. WEPCo commented that Tews' brief "refers to numerous depositions and deposition testimony as well as to extraneous materials obtained from the State of Wisconsin including Domestic Corporation Annual Reports of Wisconsin Energy Corporation and WEPCo. None of this material is before the court by way of Affidavit and should be summarily disregarded."10
¶ 31. Attorney Feldbruegge's affidavit attached the three sets of pleadings as well as printouts from the home pages of We Energies and Wisconsin Energy. The printout from the We Energies home page explained: "We Energies is the trade name of Wisconsin Electric Power Co. and Wisconsin Gas LLC, the principal utility subsidiaries of Wisconsin Energy Corporation."
¶ 32. The day after he received WEPCo's reply11 and four business days before the hearing, Tews filed a document captioned "notice of motion to strike reply brief of defendant Wisconsin Electric Power Company and Affidavit of John E. Feldbruegge." At that time, [404]*404Tews also submitted an affidavit of Attorney Buehler, attaching various court documents and transcripts from depositions, as well as the corporate annual reports from the Department of Financial Institutions' website.
¶ 33. Tews' motion asked the court to dismiss WEPCo's motion for summary judgment and strike WEPCo's reply brief and affidavit, or alternatively, to allow Tews more time to file an additional affidavit.12 He acknowledged that WEPCo had the option to file either a motion to dismiss or a motion for summary judgment, and that WEPCo chose summary judgment. However, he argued that WEPCo's initial motion for summary judgment should be "summarily disregarded" because it was not supported by an affidavit. Tews contended that he had not filed any affidavits with his response "because the moving defendant filed no affidavit(s) for the plaintiff to oppose with contrary facts."
¶ 34. It appears that Attorney Feldbruegge raised the issue of whether Attorney Buehler's affidavit was untimely. At the January 29th hearing, Tews contended that the circuit court should nevertheless consider Attorney Buehler's affidavit because "[w]e cannot file an Affidavit in opposition to what the Defendant had filed until after we receive their Affidavit — [w'Jhich we did not receive until" the day of the filing deadline. The court declined to consider Attorney Buehler's affidavit, concluding that it was "a little late."13
[405]*405¶ 35. The circuit court denied Tews' motion and turned to the merits of WEPCo's motion for summary judgment. It acknowledged that WEPCo's motion had the "flavor" of a motion to dismiss. However, it concluded that WEPCo's motion "is properly a summary judgment motion. It's properly supported by the pleadings that are filed."
¶ 36. WEPCo argued that there was no evidence in the file that would show that WEPCo was not prejudiced by the late filing or that WEPCo knew or should have known prior to the expiration of the statute of limitations that it was, "but for a misnomer, intended to be the Defendant." Tews argued that once he made the claim that the amendment related back to his original complaint, the burden shifted back to WEPCo to disprove the claim: "I do not see how the Defendant could maintain their position that it does not relate back if they don't come forth with some evidence to the contrary."
¶ 37. The circuit court granted WEPCo's motion for summary judgment. In its written decision, it explained that WEPCo "relied on pleadings which supported its time bar claim" but that Tews failed to "rely on any pleadings, depositions, answers to interrogatories, admissions on file or affidavits in support of his 'relation back' defense until the time period for such filing had expired[.]" Ultimately, the circuit court concluded that Tews "has not created a genuine issue of material fact by his brief alone."14
[406]*406¶ 38. On appeal, the court of appeals' characterization of the procedural posture of this case differed from that of the circuit court. The court of appeals concluded that WEPCo's motion had initially been a motion to dismiss: "WEPCo's motion raising the statute of limitations was not a motion for summary judgment because it relied exclusively on the allegation in Tews' complaint concerning the date of his accident, and the filing date of the complaint, without reference to any facts outside that pleading." Tews v. NHI, LLC, No. 2009AP828, unpublished slip op., ¶ 7 (Wis. Ct. App. Feb. 18, 2010) (citing Wis. Stat. § 802.06(2)(a)). The court said that "WEPCo's labeling of its motion is irrelevant." Id.
¶ 39. However, the court concluded that WEPCo's motion to dismiss was converted into one for summary judgment by Tews' response, which raised factual issues outside the pleadings. Id. According to the court of [407]*407appeals, because Tews failed "to set forth his evidence" and because his failure was not due to excusable neglect, summary judgment was properly entered in favor of WEPCo. Id.
II
¶ 40. This case requires us to determine whether WEPCo was entitled to summary judgment. We do not review the circuit court's grant or denial of summary judgment under an erroneous exercise of discretion standard. Green Spring Farms v. Kersten, 136 Wis. 2d 304, 315-17, 401 N.W.2d 816 (1987). Rather, our review is independent of the determination rendered by the circuit court, but we apply the same methodology. Id.
¶ 41. The summary judgment methodology is well established. Zielinski v. A.P Green Indus., Inc., 2003 WI App 85, ¶ 6, 263 Wis. 2d 294, 661 N.W.2d 491. "In determining whether to grant a motion for summary judgment, the court examines the pleadings to determine whether claims have been stated and material factual issues presented. To make a prima facie case for summary judgment, a moving defendant must show a defense that would defeat the plaintiff. If the moving party has made a prima facie case for summary judgment, the court must examine the affidavits and other proof of the opposing party [to determine whether summary judgment is appropriate]." 3 Grenig, Wisconsin Practice Series: Civil Procedure § 208.3 at 336 (3d ed. 2003) (citing Paul v. Skemp, 2001 WI 42, 242 Wis. 2d 507, 625 N.W.2d 860; Swatek v. County of Dane, 192 Wis. 2d 47, 531 N.W.2d 45 (1995)).
¶ 42. Summary judgment is appropriate where there is no genuine dispute of material fact and the [408]*408moving party is entitled to judgment as a matter of law. Wis. Stat. § 802.08(2). The purpose of the summary judgment procedure is to avoid trials when there is nothing to try. Rollins Burdick Hunter of Wisconsin, Inc. v. Hamilton, 101 Wis. 2d 460, 470, 304 N.W.2d 752 (1981). "On summary judgment the court does not decide the issue of fact; it decides whether there is a genuine issue of fact." Cody v. Dane County, 2001 WI App 60, ¶ 19, 242 Wis. 2d 173, 625 N.W.2d 630. Further, "summary judgment should not be granted if reasonable, but differing, inferences can be drawn from the undisputed facts." Delmore v. American Family Mut. Ins. Co., 118 Wis. 2d 510, 516, 348 N.W.2d 151 (1984).
Ill
¶ 43. Tews' petition and brief to this court set forth a number of procedural issues. We begin by addressing a threshold matter of the role that affidavits play in a summary judgment proceeding. This discussion helps inform our subsequent determination of whether WEPCo was entitled to summary judgment in this case.
¶ 44. Some may assert that a motion for summary judgment always must be supported by an affidavit, and that a proponent or opponent of summary judgment cannot prevail without filing an affidavit. Such an assertion is not supported by the language of the summary judgment statute or its history, and it is inconsistent with state and federal practice guides and commentary.
¶ 45. The procedure for summary judgment proceedings is set forth in Wis. Stat. § 802.08. During a summary judgment proceeding, parties may introduce [409]*409factual matters beyond the pleadings. Factual matters are typically introduced by affidavit. See Wis. Stat. § 802.08(3).
¶ 46. The express language of the summary judgment statute does not always require a party moving for or opposing summary judgment to file an affidavit with the court. Wisconsin Stat. § 802.08(2) provides: "[T]he motion shall be served . . . and the adverse party shall serve opposing affidavits, if any, at least 5 days before the time fixed for the hearing." (Emphasis added.) It also provides: "The judgment sought shall be rendered if the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law." (Emphasis added.)
¶ 47. The drafting history of Wis. Stat. § 802.08(2) also indicates that motions and responses to motions for summary judgment need not always be accompanied by affidavit. Wisconsin Stat. § 802.08 was modeled in large part after the Federal Rules of Civil Procedure and was adopted in 1975 by order of the Wisconsin Supreme Court, 67 Wis. 2d 585, 630-631 (1975). The Judicial Council Committee note accompanying its adoption explained that Wis. Stat. § 802.08(2) "is virtually identical to Federal Rule 56(c)," except that the Wisconsin statute provides for different time limits. Id. at 632.
¶ 48. Like the Wisconsin statute, the express language of the 1970-1976 version of the Federal Rules of Civil Procedure does not require a moving party or a party opposing summary judgment to file an affidavit with the court:
[410]*410(a) For claimant. A party seeking to recover upon a claim . . . may ... move with or without supporting affidavits for a summary judgment in his favor ....
(b) For defending party. A party against whom a claim ... is asserted .. . may . . . move with or without supporting affidavits for a summary judgment in his favor....
(c) Motion and proceedings thereon.... The adverse party prior to the day of hearing may serve opposing affidavits. The judgment sought shall be rendered forthwith if the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law. . ..
Fed. R. Civ. E 56 (1970) (emphasis added). Rule 56 of the Federal Rules of Civil Procedure is substantially the same today as it was in the 1970s, when Wisconsin's rule was drafted.
¶ 49. Finally, both state and federal practice guides confirm that affidavits are not always required when filing a motion for summary judgment. The Wisconsin Practice Series provides: "A motion for summary judgment may be made on the basis of the pleadings or other portions of the record in the case or it may be supported by affidavits and a variety of outside material." 3 Grenig, supra, § 208.4 at 341. Likewise, the treatise Federal Practice & Procedure provides that a motion for summary judgment "may be made on the basis of the pleadings or other portions of the record in the case or it may be supported by affidavits [.]" Wright, Miller & Kane, 10A Federal Practice & Procedure § 2711 at 19 (3d ed. 1998).
¶ 50. Accordingly, the court of appeals erred when it asserted that WEPCo's motion had initially been a [411]*411motion to dismiss "because it relied exclusively on the [pleadings] without any reference to any facts outside that pleading" and that "the proceeding did not become one for summary judgment until Tews introduced matters outside the pleadings" in his brief in response to WEPCo's motion. Tews, unpublished slip op., ¶ 7. Both of these assertions rely on the unsupported premise that a motion for summary judgment must be based on something beyond the pleadings. Although a motion for summary judgment will typically present factual matters beyond the pleadings, there is no statutory requirement that it do so.
¶ 51. In this case, WEPCo's motion was captioned a motion for summary judgment, it cited Wis. Stat. § 802.08(2), the summary judgment statute, and it was pursued by the moving party as a motion for summary judgment. The circuit court correctly observed that WEPCo's motion did not rely on anything beyond the pleadings, but that it was nevertheless a motion for summary judgment. The circuit court's observation is consistent with the language of the summary judgment statute, the statute’s history, and recognized Wisconsin practice.
VI
¶ 52. We address next whether WEPCo was entitled to summary judgment. The basis of WEPCo's motion is that Tews' claims were barred by the statute of limitations. The parties agree that the applicable statute of limitations is three years from the date of injury15 and that the injury occurred on December 30, 2004. There is no dispute that Tews' original complaint and his amended complaint were filed within the stat[412]*412ute of limitations, but that his second amended complaint was filed after December 30, 2007.
¶ 53. WEPCo was not named as a party until Tews filed his second amended complaint. The parties agree that the claims against WEPCo are barred by the statute of limitations unless Tews' second amended complaint relates back to the date he filed his original complaint or amended complaint.
¶ 54. The parties' disagreement centers around whether there are genuine issues of material fact regarding the applicability of the relation-back statute, Wis. Stat. § 802.09(3). Although the circuit court permitted Tews to amend his complaint by adding WEPCo as a defendant, it expressly reserved judgment on whether that amendment related back to Tews' original filings. See supra, ¶ 20. In its brief in opposition to summary judgment, Tews argued that the second amended complaint related back because WEPCo and Wisconsin Energy share the same registered agent and the same principal office, and WEPCo has retained the same law firm and lead attorney as We Energies and Wisconsin Energy. See supra, ¶ 27. However, he did not set forth these facts by affidavit.
¶ 55. Here, WEPCo is entitled to summary judgment only "if the pleadings, depositions, answers to interrogatories, and admissions on file, together with the affidavits, if any," show that there are no genuine issues of material fact regarding the conditions necessary to satisfy the relation-back statute. See Wis. Stat. § 802.08(2). When reviewing a motion for summary judgment, the court begins by examining the pleadings.
¶ 56. Based on our review of the pleadings, several facts are undisputed. The timing of the incident is undisputed, the location of the incident is undisputed, [413]*413and that Tews actually suffered injuries as a result of contact with an "electrical part" is undisputed. Likewise, it is undisputed that WEPCo has offices at the same location as Wisconsin Energy, WEPCo has the same registered agent as Wisconsin Energy, and WEPCo has retained the services of same attorney who represented We Energies and Wisconsin Energy from the outset of the case.
¶ 57. In all three complaints, Tews alleged that he was injured when he came into contact with the transformer after leaving Lennigan's Bar on foot and finding the north gate of the NASCO parking lot closed and locked. In their answers, We Energies, Wisconsin Energy, and WEPCo all admitted that Tews departed Lennigan's Bar on foot, that the north gate of the parking lot was closed and locked, that Tews "contacted an electrical part," and that Tews "suffered injuries as a result of said electrical contact."
¶ 58. WEPCo denied that 231 West Michigan Street was its principal place of business, but it admitted that it had offices at that address. Wisconsin Energy (d/b/a We Energies) admitted that its principal place of business was located at 231 West Michigan Street. It is therefore undisputed that WEPCo has offices at the same location as Wisconsin Energy's principal place of business and the same location where the original complaint was served.16
[414]*414¶ 59. Likewise, both WEPCo and Wisconsin Energy admitted that their registered agent is Keith H. Ecke, who is located at 231 West Michigan Street. It is undisputed that the two corporations share a registered agent. The record reflects that the original complaint (as well as the second amended complaint) was served on an employee at this address.17
¶ 60. One final undisputed fact is apparent. In this case, Attorney Feldbruegge has been retained to [415]*415represent the interests of all three defendants in this lawsuit. Attorney Feldbruegge filed a notice of appearance on behalf of We Energies, an "amended" notice of appearance on behalf of Wisconsin Energy, and a notice of appearance on behalf of WEPCo. During the summary judgment motion hearing, the circuit court commented to Attorney Feldbruegge: "You're sitting in the same chair that you were sitting in when you were here for Wisconsin Energies."
¶ 61. Having identified the undisputed facts, we turn to the applicable law. The relation-back statute, Wis. Stat. § 802.09(3), was adopted by Supreme Court Order, 67 Wis. 2d 585, 632 (1975). It provides:
If the claim asserted in the amended pleading arose out of the transaction, occurrence, or event set forth or attempted to be set forth in the original pleading, the amendment relates back to the date of the filing of the original pleading. An amendment changing the party against whom a claim is asserted relates back if the foregoing provision is satisfied and, within the period provided by law for commencing the action against such party, the party to be brought in by amendment has received such notice of the institution of the action that he or she will not be prejudiced in maintaining a defense on the merits, and knew or should have known that, but for a mistake concerning the identity of the proper party, the action would have been brought against such party.
Wis. Stat. § 802.09(3). The statute's purpose is "to ameliorate the effect of the statute of limitations in situations where the original pleadings provided fair notice to the opposing party of the claim or defense raised." Korkow v. Gen. Cas. Co. of Wis., 117 Wis. 2d 187, 196, 344 N.W.2d 108 (1984).
[416]*416¶ 62. We have stated that pleading should not be "a game of skill in which one misstep by counsel may be decisive of the outcome." Id. at 193. Therefore, Wisconsin has abandoned the highly formal concepts of common law form pleading in favor of a more functional concept of "notice" pleading. Id. at 192-93. When a plaintiff seeks to add a defendant and the relation-back statute is satisfied, fair notice has been provided and the added party has been given "the full benefit of the protections statutes of limitations were intended to provide." Id. at 198.
¶ 63. Wisconsin's relation-back statute is very nearly identical to Rule 15(c) of the Federal Rules of Civil Procedure. Biggart v. Barstad, 182 Wis. 2d 421, 429, 513 N.W.2d 681 (Ct. App. 1994). Like Wisconsin's statute, the purpose of the federal rule is to ensure that the statute of limitations is not "used mechanically to prevent adjudication of a claim where the real parties in interest were sufficiently alerted to the proceedings or were involved in them unofficially from an early stage." Galion v. Conmaco Int'l, Inc., 658 P.2d 1130, 1133 (N.M. 1983) (quoting 3 J. Moore, Moore's Federal Practice ¶ 15.15[4.-1] (2d ed. 1982)).
¶ 64. Just recently, the United States Supreme Court applied the federal rule in a case with facts that are indistinguishable from the facts before us today.18 See Krupski v. Costa Crociere, 130 S. Ct. 2485 (2010). In [417]*417that case, Krupski was injured as a passenger aboard a cruise ship. Her ticket identified the carrier as "Costa Crociere," an Italian Corporation. Nevertheless, Krupski brought suit against a related entity, Costa Cruise, alleging that Costa Cruise " 'owned, operated, managed, supervised and controlled' the ship on which Krupski had injured herself." Id. at 2490. When she filed her complaint, Krupski apparently failed to realize that the proper defendant was not Costa Cruise, but rather was Costa Crociere.
¶ 65. After the statute of limitations had expired, Costa Cruise asserted that it was merely the North American sales and marketing agent for Costa Crociere, which was the actual carrier and vessel operator. The District Court granted Krupski leave to amend her complaint to add Costa Crociere as a party. Costa Crociere, which was represented by the same attorney as had represented Costa Cruise, contended that the amended complaint was untimely because it did not relate back under the federal rules.
¶ 66. Based in part on the fact that Costa Cruise and Costa Crociere shared the same counsel, the District Court imputed notice of the institution of the action to Costa Crociere. Krupski v. Costa Crociere, No. 08-60152-CIV (S.D. Fla., Oct. 21, 2008). In support of this proposition, it cited Jacobsen v. Osborne, 133 F.3d 315, 320 (5th Cir. 1998) ("notice [for purposes of Fed. R. Civ. E 15(c)] may be imputed to the new party through shared counsel") and Chumney v. U.S. Repeating Arms Co., Inc., 196 F.R.D 419, 430 (M.D. Ala. 2000) ("when the original and the added defendants are represented [418]*418by the same counsel,. . . the institution of the action against one serves to provide notice of the litigation to the other").
¶ 67. The District Court, nevertheless, concluded that the relation-back rule was inapplicable because Krupski had not made a "mistake" regarding the proper party. Krupski at *6. The Eleventh Circuit Court of Appeals affirmed, concluding that the relevant information was located on Krupski's passenger ticket and that Krupski knew or should have known that Costa Creciere was the proper defendant. Krupski v. Costa Crociere, 330 Fed. Appx. 892 (11th Cir. 2009). The Eleventh Circuit explained that in light of Krupski's delay in identifying and naming the proper defendant, the District Court had not abused its discretion in denying relation back. Id. at 895.
¶ 68. The United States Supreme Court reversed. It concluded that relation back is not left to the "equitable discretion" of a district court, but rather "the Rule mandates relation back once the Rule's requirements are satisfied." Krupski, 130 S. Ct. at 2496. The Court further determined that the Eleventh Circuit misinterpreted the Rule. It clarified that relation back depends on what the party to be added knew or should have known, not on the plaintiffs knowledge or timeliness in seeking to amend the pleading. Id. The speed with which the moving party moves to amend the complaint after receiving leave to do so has no bearing on whether the amended complaint relates back. Id.
¶ 69. The Court's analysis relied on an underlying purpose of the Rule. Like the Wisconsin statute, the federal rule "balance [s] the interests of the defendant protected by the statute of limitations with the preference expressed in the Federal Rules of Civil Procedure in general, and Rule 15 in particular, for resolving [419]*419disputes on their merits." Id. at 2494. The Court elaborated that any other interpretation would result in a "windfall":
A prospective defendant who legitimately believed that the limitations period had passed without any attempt to sue him has a strong interest in repose. But repose would be a windfall for a prospective defendant who understood, or who should have understood, that he escaped suit during the limitations period only because the plaintiff misunderstood a crucial fact about his identity.
Id.
¶ 70. When applying the Rule, the Court focused its analysis on the pleadings. No reference is made to any affidavit. Rather, the Court imputed knowledge of the claim to the subsequently named defendant without the plaintiff demonstrating by any affidavit that the relation-back requirements had been met.19
[420]*420¶ 71. In rejecting the lower courts' focus on the plaintiffs conduct and knowledge in the first instance, the Court made clear that the question under the relation-back statute "is not whether Krupski knew or should have known the identity of Costa Crociere as the proper defendant, but whether Costa Crociere knew or should have known that it would have been named as a defendant but for an error." Id. at 2493. The Court further explained that when dealing with related corporate entities with very similar names, there is a heightened expectation that the added party should suspect that, but for a mistake concerning its identity, the added party was the intended defendant:
It is also worth noting that Costa Cruise and Costa Crociere are related corporate entities with very similar names; 'crociera' even means 'cruise' in Italian. This interrelationship and similarity heighten the expectation that Costa Crociere should suspect a mistake has been made when Costa Cruise is named in a complaint that actually describes Costa Crociere's activities.
Id. at 2498.
¶ 72. Like the federal rule, Wisconsin's relation-back statute requires the following conditions to be met when an amendment adding a new party20 is made after [421]*421the statute of limitations has expired: (1) the claim asserted in the amended complaint arose out of the transaction, occurrence, or event set forth or attempted to be set forth in the original complaint; (2) within the period provided by law for commencing a claim, the added party received such notice of the institution of the action that he or she will not be prejudiced in maintaining a defense on the merits; and (3) within the period provided by law for commencing a claim, the added party knew or should have known that, but for a mistake concerning the identity of the proper party, the action would have been brought against the added party.21
¶ 73. Here, there does not appear to be any dispute that the claims asserted in Tews' second amended complaint "arose out of the transaction, occurrence, or event" set forth in Tews' original or amended complaint. In all three complaints, Tews alleged that he was injured when he came into contact with the transformer after leaving Lennigan's Bar on foot and finding the north gate of the NASCO parking lot closed and locked.
[422]*422¶ 74. To avoid summary judgment, there also must be facts in the record permitting a reasonable inference that WEPCo received notice of the institution of the action within the three-year statute of limitations such that it will not be prejudiced in maintaining a defense on the merits. Based on the undisputed facts, such an inference is reasonable.
¶ 75. WEPCo has offices at the same location as Wisconsin Energy and the same location where the original complaint was served. It also has the same registered agent as Wisconsin Energy. These undisputed facts permit the reasonable inference that WEPCo knew about the institution of the action within the three-year statute of limitations. The fact that WEPCo has retained the services of the same attorney who represented We Energies and Wisconsin Energy from the outset of the case permits the reasonable inferences that not only did WEPCo know about the action, but also that its interests have been protected so that it will not be prejudiced in maintaining a defense on the merits. These reasonable inferences, if true, would preclude the grant of summary judgment.
¶ 76. Finally, to avoid summary judgment, there also must be facts permitting the inference that WEPCo knew or should have known that, but for a mistake concerning its identity as a proper party, the action would have been brought against WEPCo. A review of the first two complaints, both filed within the statute of limitations, is helpful in considering whether WEPCo knew or should have known that, but for a mistake concerning its identity as a proper party, the action would have been brought against WEPCo. The original complaint alleges that We Energies was "the servicer of the electrical sub-station at issue." The first amended complaint alleges that Wisconsin Energy was "the ser[423]*423vicer, supplier, and/or provider to the electrical substation at issue." From these two complaints, it is apparent that Tews intended to file suit against the servicer of the electrical sub-station at Fort Atkinson's NASCO plant.
¶ 77. The same undisputed facts that are relevant to the notice condition are relevant to this condition as well. As discussed above, the undisputed facts permit the inference that WEPCo was on notice of the institution of the action within the statute of limitations. If so, WEPCo should have known that, but for a mistake concerning the identity of that servicer of the electrical sub-station, WEPCo was the intended defendant. Again, the admitted facts from the pleadings illustrate that there is a genuine issue of material fact.
¶ 78. In its brief to the circuit court in support of summary judgment, WEPCo argued that given Tews' delay in attempting to amend the complaint, "it would have been reasonable for WEPCo to conclude that Tews sued Wisconsin Energy Corporation by design, not mistake[.]" This is an inference that may be drawn from the undisputed facts, but it is not the only possible inference.
¶ 79. As noted above, the purpose of summary judgment is not to try issues of fact. "[S]ummary judgment should not be granted if reasonable, but differing, inferences can be drawn from the undisputed facts." Delmore v. American Family Mut. Ins. Co., 118 Wis. 2d 510, 516, 348 N.W.2d 151 (1984).
¶ 80. The undisputed facts set forth above raise competing inferences. There is a reasonable inference that the requirements of the relation-back statute are satisfied, and that Tews' second amended complaint is therefore not barred by the statute of limitations. Although WEPCo made various factual assertions in its [424]*424affidavit, nothing set forth in its affidavit resolves in WEPCo's favor the competing inferences raised by the undisputed facts in the pleadings. We therefore conclude that WEPCo is not entitled to summary judgment.22
¶ 81. We emphasize that our determination here is not based on any reliance on the allegations in Tews' complaints — rather, it is based on the admitted and undisputed facts established by the defendants' responsive pleadings. If we were reviewing mere allegations or denials, our result would be different.
¶ 82. Once the moving party has made a case for summary judgment, a party opposing summary judgment may not rest on the mere allegations or denials of the pleadings:
Supporting affidavits need not be filed with the motion for summary judgment if the pleadings and other papers filed in the action reflect the fact that there is no genuine issue for trial. However, a plaintiff may not rely [425]*425on allegations in the complaint to oppose a defendant's summary judgment motion, because the complaint is not evidentiary.
3 Grenig, supra, § 208.4 at 341-42 (emphasis added). In the rare case, however, the pleadings will establish something beyond "mere allegations" — the pleadings will establish the existence of undisputed facts that preclude entry of summary judgment. This is one such case.23
¶ 83. It bears emphasis that, even though the statute does not always require affidavits to be filed in a proceeding for summary judgment, the best and safest [426]*426practice is to do so. Attorneys who fail to support or oppose a motion for summary judgment with an affidavit do so at their own peril.
¶ 84. In sum, we conclude that an examination of the pleadings reveals the following undisputed facts: The timing of the incident is undisputed, the location of the incident is undisputed, and that Tews actually suffered injuries as a result of contact with an "electrical part" is undisputed. Likewise, it is undisputed that WEPCo has offices at the same location as Wisconsin Energy, WEPCo has the same registered agent as Wisconsin Energy, and WEPCo has retained the services of the same attorney who represented We Energies and Wisconsin Energy from the outset of the case.
¶ 85. These undisputed facts raise competing reasonable inferences. One of the reasonable inferences is that the requirements of the relation-back statute are satisfied, and that Tews' second amended complaint is therefore not barred by the statute of limitations.
¶ 86. Although WEPCo made various factual assertions in its affidavit, nothing set forth in its affidavit resolves in WEPCo's favor the competing inferences raised by the undisputed facts in the pleadings. We therefore conclude that WEPCo is not entitled to summary judgment. Accordingly, we reverse the decision of the court of appeals.
By the Court. — The decision of the court of appeals is reversed.