(left) and
Joe Boyer (right) After Joe Boyer, in his original car, led the first lap,
Jimmy Murphy took the lead. By half-distance, Murphy led while
Earl Cooper held 2nd.
Fred Duesenberg, incensed that his lead car was behind four Miller vehicles, called Boyer into the pits, as his car had fallen behind with unscheduled pit stops. He then waved in his 5th-place car, driven by
L. L. Corum, and installed Boyer in it. Duesenberg reportedly told him, "Catch them," referring to the Millers, "or burn this ship!" Boyer re-entered the race with Corum's car and soon passed
Bennett Hill and
Harry Hartz. With 40 laps to go, he was about 1 mile behind leader
Jimmy Murphy and
Earl Cooper, turning laps at up to 104 mph. Murphy was signaled that Boyer was rapidly closing and upped his pace, but he soon cut a tire and had to pit. Cooper assumed the lead but suffered the same fate after pushing harder. Cooper sped out of the pits and closed on Boyer. With 12 laps to go, Cooper made a passing attempt in turn 1, but skidded and again cut a tire, prompting another pit stop. Boyer then eased his pace to win the 500 with a record average speed of over 98 mph. ==Box score==