Sears Point International Raceway June 11 1978Sears Point International RacewaySonoma, CA 250MX Results 500MX Results Results Home 1978 Results Sears Point International Raceway Live & On-Demand Learn More * all times Check back for a full broadcast schedule closer to the race. 1978500MXFull Results TommyCroft1st MartySmith2nd MikeBell3rd 1978250MXFull Results BobHannah1st JimWeinert2nd JimmyEllis3rd