Round 9 of the AMA-sanctioned VIVA Driven MX Series runs Sunday, August 23 at Ohio International Raceway. The class card runs the full 38-class VIVA Driven MX ladder from 50cc divisions and mini e-bikes through Supermini, Schoolboy, 250/Open A-B-C, vets 25+ to 60+, Women, 2-Stroke, Bomber, E-Bike Open, and the Warrior class for veterans and first responders. Full rules: vivaohiomx.com/pages/2026-class-list.