James Stewart Jr.

James Stewart Jr. (born December 21, 1985) is an American former professional motocross and supercross racer, widely regarded as one of the most talented and dynamic riders in the history of the sport. Known for his raw speed and innovative riding techniques, Stewart earned two AMA Supercross 450cc championships, one AMA Motocross 450cc championship, & two 125cc AMA Supercross titles. He is 6th in all-time 250cc supercross west class wins, 3rd in all-time supercross 450cc class wins, and 1st in all-time 125cc wins, placing him among the most successful riders of all time.

Nicknamed "Bubba," Stewart revolutionized motocross with his aggressive riding style and groundbreaking "scrub" technique, which allowed him to clear jumps faster and with more precision than his competitors. This innovation not only changed how the sport was raced but also became a signature move emulated by racers worldwide. His contributions to the sport earned him the moniker "The Fastest Man on the Planet."

Stewart's influence extended beyond the track, becoming the first African American rider to dominate motocross and supercross at the highest levels. His success and charisma helped expand the sport's appeal to a broader audience. He also starred in his own reality television series, Bubba’s World, which showcased his life and career, along with several video games such as James Stewart’s Motocross.

Since discontinuing racing in 2016 and formally retiring from professional racing in 2019, Stewart remained relatively quiet in the industry, until returning to the sport as an on-camera commentator for the AMA Motocross and Supercross championships in 2022.