Offenhauser World Championship Indy 500 summary World Championship Indy 500 summary

| Season | Cars_Entered | Winning_Driver | Second_Driver | Third_Driver | Race_Report |
|---|---|---|---|---|---|
| 1950 | 31 | Johnnie Parsons | Bill Holland | Mauri Rose | Report |
| 1951 | 32 | Lee Wallard | Mike Nazaruk | Manny Ayulo | Report |
| 1952 | 30 | Troy Ruttman | Jim Rathmann | Sam Hanks | Report |
| 1953 | 32 | Bill Vukovich | Art Cross | Sam Hanks | Report |
| 1954 | 34 | Bill Vukovich | Jimmy Bryan | Jack McGrath | Report |
| 1955 | 35 | Bob Sweikert | Tony Bettenhausen | Jimmy Davies | Report |
| 1956 | 32 | Pat Flaherty | Sam Hanks | Don Freeland | Report |
| 1957 | 31 | Sam Hanks | Jim Rathmann | Jimmy Bryan | Report |
| 1958 | 31 | Jimmy Bryan | George Amick | Johnny Boyd | Report |
| 1959 | 33 | Rodger Ward | Jim Rathmann | Johnny Thomson | Report |
| 1960 | 33 | Jim Rathmann | Rodger Ward | Paul Goldsmith | Report |