Video highlights courtesy of Monster Energy Supercross.

In the 250SX Dave Coombs Sr. East/West Showdown, Colt Nichols jumped to the early race lead. Eventually Jett Lawrence took the race lead and would take the win. Nichols finished second to wrap up his 250SX East Region title. Hunter Lawrence charged back from a crash, finishing in third place as Justin Cooper finished in ninth place in order to clinch his 250SX West Region title.

Championship Finish

250SX East Region

Colt Nichols claimed the 2021 250SX East Region title (his first professional title). 

250SX West Region

Justin Cooper claimed the 2021 250SX West Region title (his first professional title). 

In the 450SX class, Ken Roczen jumped out to the early race lead ahead of Marvin Musquin, Cooper Webb, and Chase Sexton. Sexton passed Webb to move into second before then passing his teammate Roczen for the race lead. Webb managed to pass Roczen and then his teammate Musquin followed through past the #94 as well. Roczen started to drop position after position before eventually finishing in tenth place. Then, Webb caught Sexton out front and capitalized on a mistake from the Honda HRC rider to made a pass to take over the race lead. Webb would go on to take his eighth main event win of the season as he was crowned 2021 450SX champion. Webb (who won the 2019 450SX title) becomes only the 11th rider to earn multiple premier class AMA Supercross championships.

Championship Finish

Cooper Webb claimed the 2021 450SX title, making him a two-time premier class champion (his maiden 450SX title was in 2019).