| 5 | 1960 | Indianapolis | Jim Robbins | 97 | Watson | Indy Roadster | Offenhauser | L4 | Firestone | 4 | 31 | Brakes |
| 4 | 1959 | Indianapolis | McNamara/Kalamazoo Sports | 73 | Watson | Indy Roadster | Offenhauser | L4 | Firestone | 4 | 20 | Fire |
| 3 | 1958 | Indianapolis | McNamara/Kalamazoo Sports | 97 | Watson | Indy Roadster | Offenhauser | L4 | Firestone | 1 | 27 | Accident |
| 2 | 1956 | Indianapolis | McNamara/Kalamazoo Sports | 73 | Kurtis Kraft | 500C | Offenhauser | L4 | Firestone | 4 | 5 | |
| 1 | 1950 | Indianapolis | City of Glendale/A.J. Watson | 45 | Watson | Indy Roadster | Offenhauser | L4 | Firestone | 18 | 32 | Engine |