Cycle World USAJune 18 1978Cycle World USASt. Peters, MO250MX Results 500MX Results Results Home 1978 Results Cycle World USA Live & On-Demand Learn More * all times Check back for a full broadcast schedule closer to the race. 1978500MXFull Results MikeBell1st TommyCroft2nd DarrellShultz3rd 1978250MXFull Results BobHannah1st ChuckSun2nd JimmyEllis3rd