Masten Gregory Indianapolis 500 Stats
| Starts | Total Laps | Poles | Wins | Top 5 | Top 10 | Races Led | Laps Led | Winnings |
| 1 | 59 | 0 | 0 | 0 | 0 | 0 | 0 | $9,076 |
| Year | Finish | Start | Car Num. | Car Name / Entrant | Make / Model | Qual. Speed | Status | Laps | Led | Winnings |
| 1965 | 23 | 31 | 41 | George R. Bryant & Staff | BRP / Ford / Firestone | 154.54 | Oil Pressure | 59 | 0 | $9,076 |