Video highlights of the Carson City Motorsports Hangtown Motocross Classic, the 12th and final round of the 2021 Lucas Oil Pro Motocross Championship.

Results of the Carson City Motorsports Hangtown Motocross Classic, the 12th and final round of the 2021 Lucas Oil Pro Motocross Championship.

Cooper Webb and Justin Cooper topped the time sheets in qualifying for the season-ending Hangtown Motocross Classic.

A gallery of some of the best shots from the Maxxis Fox Raceway II National on September 4, courtesy of Align Media.

Video highlights of the Maxxis Fox Raceway II National, Round 11 of the 2021 Lucas Oil Pro Motocross Championship.

Results of the Maxxis Fox Raceway II National, Round 11 of the 2021 Lucas Oil Pro Motocross Championship.

Yamaha's Justin Cooper and Dylan Ferrandis led the way in qualifying at the Fox Raceway II National.

A gallery of some of the best shots from the Guaranteed Rate Ironman National on August 28, courtesy of Align Media.

Video highlights of the Guaranteed Rate Ironman National, Round 10 of the 2021 Lucas Oil Pro Motocross Championship.

Results of the Guaranteed Rate Ironman National, Round 10 of the 2021 Lucas Oil Pro Motocross Championship.

Jett Lawrence and Dylan Ferrandis topped the time sheets for qualifying at the Ironman National.

Several prominent 450 Class riders will be forced to miss the Ironman National due to various reasons.