The opinion of the court was delivered by: M. James Lorenz United States District Court Judge
ORDER OVERRULING PLAINTIFF'S OBJECTIONS TO MAGISTRATE JUDGE ORDER AND RELATED COUNTERCLAIM.
This case arises out of a business dispute between Defendants, Mexican business entities which sell, among other products, the Penafiel brand of mineral water in the United States, and Plaintiff Dos Amigos Distributors, Inc. ("Dos Amigos"), their distributor in the United States. The case was referred to Magistrate Judge Louisa S. Porter for determination of non-dispositive pretrial matters, including discovery, pursuant to Federal Rule of Civil Procedure 72(a) and Civil Local Rule 72.1(b). Dos Amigos timely filed Objections to the Magistrate Judge's Order Striking Plaintiff's Supplemental Disclosure of Expert Testimony and Report ("Order") filed July 17, 2008. Defendants filed a response. For the reasons which follow, Plaintiff's objections OVERRULED.
Plaintiff designated Vickie M. Wolf as its damages expert. The parties exchanged their expert reports on December 12, 2007. In her initial report, Ms. Wolf opined that Plaintiff lost $1,270,526 in profits. However, because this analysis did not take into account increased sales over the relevant time, Plaintiff's counsel asked her to prepare a supplemental report. (James Decl. at 3.) In her supplemental report, Ms. Wolf opined that, based on the increased sales assumption, Plaintiff lost $1,884,271 in profits. The supplemental report, dated January 14, 2008, was served on July 11, 2008. This was four business days before Ms. Wolf's deposition and two weeks before the final pretrial conference. Defendants objected to the supplemental report as untimely. On July 17, 2008, the Magistrate Judge granted their objection and ordered the supplemental report stricken. Plaintiff objects to the Magistrate Judge's order.
District court review of magistrate judge orders on non-dispositive motions is limited. Discovery motions, such as the motion at issue here, are considered non-dispositive. See 28 U.S.C. § 636(b)(1)(A); Civ. Loc. R. 72.1(b). A district court judge may reconsider a magistrate judge's ruling on a non-dispositive motion only "where it has been shown that the magistrate's order is clearly erroneous or contrary to law." 28 U.S.C. § 636(b)(1)(A); Fed. R. Civ. Proc. 72(a). This essentially amounts to an abuse of discretion standard. See Foster v. Skinner, 70 F.3d 1084, 1087 (9th Cir. 1995) ("An abuse of discretion occurs if the district court does not apply the correct law or rests its decision on a clearly erroneous finding of fact.").
The time to exchange supplemental expert reports was set in the Magistrate Judge's Second Amended Order Regarding Discovery and Other Pretrial Proceedings filed October 17, 2007 ("October 17 Order"). The date was set for December 28, 2007. It is undisputed that the parties stipulated to extend the time to January 25, 2008.*fn1 Plaintiff argues that the supplemental report was not untimely served under the October 17 Order because it was not supplemental in the sense intended by the order. The order stated:
Any party, through any expert designated, shall in accordance with Federal Rules of Civil Procedure 26(a)(2)(C) and 26(e), supplement any of its expert reports regarding evidence intended solely to contradict or rebut evidence on the same subject matter identified in an expert report submitted by another party.
(October 17 Order at 2.) The parties do not dispute that Ms. Wolf's supplemental report was not intended to contradict or rebut Defendants' expert report. Accordingly, the January 25, 2008 deadline did not apply.
Plaintiff argues that the report was supplemental as required by Rule 26(e)(1) (Objection at 3), which provides in pertinent part:
A party who has made a disclosure under Rule 26(a) . . . must supplement or correct its disclosure or response  in a timely manner if the party learns that in some material respect the disclosure or response is incomplete or incorrect, and if the additional or corrective information has not otherwise been made known to the other parties during the discovery process or in writing . . .. (Emphasis added.) Assuming Plaintiff's counsel's afterthought regarding the increased sales assumption qualifies as "learn[ing] that in some material respect the [expert report was] incomplete or incorrect," the question remains whether Plaintiff complied with Rule 26(e)(1) "in a timely manner."
Plaintiff argues that his disclosure of the supplemental report was timely because it was served before the deadline for exchanging Rule 26(a)(3) pretrial disclosures. (Objections at 4.) The Magistrate Judge's Third Amended Order Regarding Discovery and Other Pretrial Proceedings set July 7, 2008 as the deadline, but the parties stipulated to extend the time to July 21, 2008.*fn2 Plaintiff argues that he timely complied because he served the supplemental report before that date.
Plaintiff's focus on Rule 26(a)(3) is misdirected. According to Plaintiff, the supplemental report was required by Rule 26(e)(1), which mandates disclosure "in a timely manner." Plaintiff waited for six months after the supplemental report was prepared to share it with opposing counsel on the eve of the expert's deposition and pretrial conference. Accordingly, Plaintiff did not comply in a timely manner.*fn3
Plaintiff next argues that exclusion of the supplemental report from evidence was not an appropriate sanction under Rule 37(c) because there was no bad faith or deception involved and Defendants suffered no prejudice. The court disagrees.
The rule expressly provides for exclusionary sanctions:
If a party fails to provide information or identify a witness as required by Rule 26(a) or (e), the party is not allowed to use that information or witness to supply evidence on a motion, at a hearing, or at a trial, unless the failure was substantially justified or is harmless. In addition to or instead of ...