The 39th International 500-Mile Sweepstakes was held at the Indianapolis Motor Speedway on Monday, May 30, 1955. The event was race 1 of 11 of the 1955 AAA National Championship Trail and was race 3 of 7 in the 1955 World Championship of Drivers. Round 3 of 7 · 1955 Formula One World Championship May 30, 1955 Podium: 1. Bob Sweikert · 2. Tony Bettenhausen · 2. Paul Russo · 3. Jimmy Davies Wiki link