Rockstar Energy Husqvarna Factory Racing's Michael Mosiman will miss the MB Tractor & Equipment Southwick National due to injury.

Monster Energy/Yamaha Factory Racing's Aaron Plessinger will make his 450 Class debut at the MB Tractor & Equipment Southwick National.

Current season statistics heading into the MB Tractor & Equipment Southwick National, Round 6 of the Lucas Oil Pro Motocross Championship.

MX vs ATV provides a virtual look at the track layout for the MB Tractor & Equipment Southwick National, Round 6 of the 2019 Lucas Oil Pro Motocross Championship.

On Wednesdays throughout the 2019 season, the Lucas Oil Pro Motocross Championship will recognize a member of the motocross community that has gone above and beyond. They're known as Moto Heroes.

Historic information for the MB Tractor & Equipment Southwick National, Round 6 of the 2019 Lucas Oil Pro Motocross Championship.

The Wick 338 has announced its title sponsor for Saturday's Southwick National.

MotoSport.com Holeshot replays from the US Assure Florida National, Round 5 of the Lucas Oil Pro Motocross Championship.

Video highlights of the US Assure Florida National, Round 5 of the 2019 Lucas Oil Pro Motocross Championship.

Results of the US Assure Florida National, Round 5 of the 2019 Lucas Oil Pro Motocross Championship.

Gage Linville raced to the 125cc All Star Series win at the Florida National.

Qualifying is complete at the Florida National, and Jason Anderson and Justin Cooper were the fastest riders of the morning sessions.