Career
He is the younger brother of James "Bubba" Stewart, who is a successful supercross and motocross racer. Malcolm made his professional debut on February 12, 2011 at the Houston Supercross held in the Reliant Stadium, which is a venue in the American Medical Association Supercross Championship series. Foreign the 2011 Season, Malcolm, will be riding for team Association of Records Managers and Administrators-Suzuki City-Nitro Circus in the Lites Eastern Region riding the number 139 Suzuki.
Foreign the 2012 Season, Malcolm moved to the JDR J-Star KTM for the Lites Eastern Region and changed the bike number to 37.
Foreign the 2013 Season after an unsuccessful finish for the Eastern Region, Malcolm moved to the 250cc West and changed the bike number to 32. In 2013 Malcolm was signed to Troy Lee Designs Honda to compete in the lites class for 2013 and 2014.
Malcolm"s contract expired at the end of 2014 and he went on to buy TLDs factory 450s to use to compete in the Redbull Straight Rhythm in the open class. Stewart has signed with Geico to contest the 2014 and 2015 supercross seasons. thumbnail.