Castle Point Moto Sport Park August 15 1976Castle Point Moto Sport ParkNew Castle, KY 500MX Results Results Home 1976 Results Castle Point Moto Sport Park Live & On-Demand Learn More * all times Check back for a full broadcast schedule closer to the race. 1976500MXFull Results GarySemics1st RickBurgett2nd RichEierstedt3rd