Mittag, 19, is subbing for the recovering Mike Johnson. The Temecula, Calif., native has been racing for six years. So far this season, he has earned five podium finishes, including two wins in the Traxxas TORC Off Road Series. In 2012, in his LOOORS ProLite debut race at Firebird Raceway, he finished third. The young racer has also competed in the M4SX Series.