|High School:||Kamiakin HS '13|
High School: Oser placed 10th at the WIAA 3A State Cross Country Championships, running a time of 15:49.6 on the 5,000-meter course and helping Kamiakin to a second-place finish overall. He also placed 13th at the NXN Northwest Regionals, running 16:03.1. He was a four-year state competitor in cross country and was also named First Team All-Conference his senior year. In track, Oser had personal bests in the 1,600 (4:20.83), 3,000 (9:01.49) and 3,200 (9:21.25).