In 2015, Cole Seely solidified his place among the top 450SX riders, notching his debut premier-class Supercross win as well as numerous podium appearances, finishing third in the final points standings and earning official Rookie of the Year honors. 2018 proved to be a challenge for Seely as he suffered a nearly career-ending crash at the Tampa Supercross, which sidelined him for the remainder of the year. Seely competed at the Daytona Supercross, finishing 13th.