Larison was named second-team All-Big Sky Conference during his freshman season, which was postponed from the fall to the spring of 2021 due to COVID-19. He repeated as a second team All-Big Sky selection as a sophomore after rushing for 255 yards and three touchdowns, catching 18 passes for 241 yards and one touchdown, and returning 23 kickoffs for 688 yards and one touchdown. Larison was named first-team All-Conference as a junior. He was named the Big SkyOffensive Player of the Year after rushing for 1,101 yards and 13 touchdowns. Larison used the extra year of eligibility granted to college athletes due to the COVID-19 pandemic and returned for a fifth season in 2024.