Michael Mosiman is an American professional motocross and supercross racer from Sebastopol, California, competing in the AMA Supercross Championship and AMA National Motocross Championship since his 2017 professional debut. His breakthrough came at the 2022 San Diego round of the AMA Supercross Championship, where he led every lap to claim his first and only 250SX West victory. Mosiman also secured his first outdoor race win during the 2022 AMA National Motocross Championship and has earned multiple podiums across both disciplines, including a 2025 Arlington supercross podium following his comeback with Monster Energy Star Racing Yamaha. Known for resilience after serious injuries including neck fractures, Mosiman’s career news covers race results, team transitions, injury updates, and return milestones.
