11700 S Harrison
Tucson, AZ 85747
2018 Dirt Riot Southwest Series - Tucson, AZ at MC Motorsports Park - May 5, 2018 . Entry Form for Racers in Pro 4400 Class, Pro 4500 Class, Pro 4600 Class, Pro UTV Class, SuperMod Trail, Mod Trail, Stock Trail and Sportsman UTV Classes.