The 41st International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Thursday, May 30, 1957. The event was part of the 1957 USAC National Championship Trail and it was the third race of the eight-race 1957 World Championship of Drivers. Round 3 of 8 · 1957 Formula One World Championship May 30, 1957 Podium: 1. Sam Hanks · 2. Jim Rathmann · 3. Jimmy Bryan Wiki link