Baldwin Motocross ParkJuly 15 1973Baldwin Motocross ParkBaldwin, KS250MX Results Results Home 1973 Results Baldwin Motocross Park Live & On-Demand Learn More * all times Check back for a full broadcast schedule closer to the race. 1975500MXFull Results JimWeinert1st GarySemics2nd KentHowerton3rd 1974125MXFull Results JimmyEllis1st MartySmith2nd ChuckBower3rd