The attrition list for the High Point National added more prominent names in the hours leading up to the third round.

A gallery of some of the best shots from the Toyota Thunder Valley National on June 5, 2021 courtesy of Align Media.

Monster Energy/Pro Circuit/Kawasaki rider Seth Hammaker will miss the Thunder Valley National due to an illness.

Monster Energy/Pro Circuit/Kawasaki rider Cameron McAdoo will be out indefinitely with a fractured tibia.

A gallery of some of the best shots from the DirtBikeKidz Fox Raceway I National on May 29, 2021 courtesy of Align Media.

Results of the DirtBikeKidz Fox Raceway I National, the opening round of the 2021 Lucas Oil Pro Motocross Championship.

Qualifying for the season-opening Fox Raceway I National is complete, with Adam Cianciarulo and Jett Lawrence leading the way.

See what the riders have to say in advance of the 2021 Lucas Oil Pro Motocross Championship.

Monster Energy/Pro Circuit/Kawasaki rider Jordon Smith will miss the 2021 season following shoulder surgery.

Tickets to three additional rounds of the 2021 season are now on sale.

Tickets to two additional rounds of the 2021 season are now on sale.

The championship will receive a record level of contingency support for the 2021 season, surpassing $8.3 million from seven competing manufacturers.