NOT FOR PUBLICATION
W. Gary Olson appeals the district court's grant of summary judgment on his claims against the University of Washington and various university employees (collectively, "the University"). We have jurisdiction under 28 U.S.C. § 1291 and review de novo the district court's summary judgment. Ambat v. City & Cty. of San Francisco, 757 F.3d 1017, 1023 (9th Cir. 2014). We affirm.
With respect to Olson's retaliation claim, even if we assume that he advanced a prima facie showing of retaliation under Wash. Rev. Code § 49.60.210, Olson has failed to rebut the University's legitimate, nonretaliatory reason for taking an adverse employment action against him. See Hollenback v. Shriners Hosps. for Children, 206 P.3d 337, 343-44 (Wash. Ct. App. 2009). Specifically, Olson has failed to raise a genuine issue of material fact that the University's proffered reason was pretextual or that an improper, retaliatory purpose was a "substantial factor" motivating the University's actions. See Scrivener v. Clark Coll., 334 P.3d 541, 546-47 (Wash. 2014).
Olson's Fourteenth Amendment claim for deprivation of his liberty interest without due process also fails. Even assuming that Olson has established that his asserted harms are sufficient to trigger the procedural protections of the Fourteenth Amendment, cf. Paul v. Davis, 424 U.S. 693, 711-12 (1976), he received an adequate pre-deprivation opportunity to clear his name. Cox v. Roskelley, 359 F.3d 1105, 1110-12 (9th Cir. 2004).
Because we uphold the district court's grant of summary judgment, we need not address the exclusion of Olson's damages expert for untimely disclosure under Federal Rule of Civil Procedure 26(a)(2).