Sunday 24th April 1966
Rodger Ward won a rain shortened USAC Championship race on the 1 mile paved Trenton Speedway. Ward’s supercharged Offy powered Lola was in front when the race was halted after 102 of the 150 laps were run. It marked the first win for the new supercharged Offenhauser motor. Mario Andretti jumped into the lead at the start and he and A.J. Foyt swapped the lead in a great battle. Foyt’s engine soured and on the 66th lap, he pitted with a clogged fuel line, moving Ward into 2nd. Foyt lost 3 laps in the pits before returning. On lap 88, Andretti had to pit with a flat tire to give Ward the lead. Ward was leading Gordon Johncock by 20 seconds when rain brought out the yellow. Shortly the red and checkered ended the race with Ward scoring his first win since 1963, his first in a rear engined car and 26th of his career. It was also his last, as he retired after the Indy 500 in May.