Overview
- Hunter Lawrence won the 450 main in Denver, leaving Ken Roczen ahead by only one point going into the Salt Lake City finale.
- Roczen finished second after passing Cooper Webb and Jorge Prado but could not reel in Lawrence over the closing laps.
- Cooper Webb crashed while trying to pass Prado, finished 10th, and fell out of mathematical title contention.
- Haiden Deegan controlled the 250SX West main from the start, with Levi Kitchen second and Ryder DiFrancesco third, and his 14th career win put him third on the class all-time list.
- Race-day qualifiers shaped the 250 field as Max Anstie won Heat 1 for a prime gate pick, and rookie Kayden Minear came through the last-chance qualifier to finish fifth in his first pro start.