Round 10 of 29
Santa Fe Speedway · Hinsdale, IL · June 23, 1978 · 0.5 mi (0.8 km) TT
AMA Grand National Championship
GNC Main Event · 1 starters
Open a row for grid to finish, laps led, best-lap rank and every sponsor. "Behind winner" and "Behind rider ahead" are in seconds; riders a lap or more down show laps.