The 2015 Lucas Oil Pro Motocross Championship, sanctioned by AMA Pro Racing, kicked off on Saturday with the 47th Annual GoPro Hangtown Motocross Classic in the shadow of the California state capital at Prairie City SVRA. The 12-round summer-long battle to crown a champion saw GEICO Honda's Eli Tomac make the first statement in the 450 Class, earning his second career overall victory with a dominant 1-1 moto sweep. In the 250 Class, reigning champion and Yamalube/Star Racing Yamaha rider Jeremy Martin began his title defense with a dominant final moto to earn the tiebreaker over Red Bull KTM's Marvin Musquin and claim his second straight overall win at Hangtown.

250 and 450