Johnny Thomson race record
| Grand Prix | Date | Team | Grid | Finish | Pts |
|---|---|---|---|---|---|
| Indianapolis 500 1960 | 30 May 1960 | Lesovsky | 17 | 5 | 2 |
| Indianapolis 500 1959 | 30 May 1959 | Lesovsky | 1 | 3 | 5 |
| Indianapolis 500 1958 | 30 May 1958 | Kurtis Kraft | 22 | Steering | |
| Indianapolis 500 1957 | 30 May 1957 | Kuzma | 11 | 12 | |
| Indianapolis 500 1956 | 30 May 1956 | Kuzma | 18 | Spun off | |
| Indianapolis 500 1955 | 30 May 1955 | Kuzma | 33 | 4 | 3 |
| Indianapolis 500 1954 | 31 May 1954 | Nichels | 4 | Retired | |
| Indianapolis 500 1953 | 30 May 1953 | Kurtis Kraft | 18 | Oil leak |