FILE - In this May 30, 1947, file photo, the pace lap of the Indianapolis 500 auto race is underway at the Indianapolis Motor Speedway in Indianapolis, Ind. (AP Photo)
RACE: 31st Indianapolis 500
DATE: May 30, 1947
WINNER: Mauri Rose
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AVERAGE SPEED: 116.338 mph
WHAT HAPPENED: The race went out without defending champion George Robson, who died in another race months after winning Indy. Rose passed Lou Moore teammate Bill Holland for the lead with eight laps left. But the race was marred by yet another death, to driver Shorty Cantlon. Cantlon swerved into the outside retaining wall to avoid a spinning car and was killed instantly.
NOTABLE: Only seven of 30 cars were on the lead lap at the end of the race. Several top drivers of the American Society of Professional Auto Racing group threatened to boycott the race over the purse size.