Cycle Trails Moto Park June 10 1973Cycle Trails Moto ParkAdelphi, OH 250MX Results 500MX Results Results Home 1973 Results Cycle Trails Moto Park Live & On-Demand Learn More * all times Check back for a full broadcast schedule closer to the race. 1973500MXFull Results PierreKarsmakers1st MikeRunyard2nd BradLackey3rd 1973250MXFull Results GaryJones1st GaryChaplin2nd RichThorwaldson3rd