Isotta
1909, 13-15
| Name | Starts | DNS/Q | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Max | Poismans | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Al | Poole | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Harry | Grant | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | |
| George | Babcock | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| Lewis | Strang | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| Harry | Reynolds | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 |
| Joe | Seymour | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 |
| Teddy | Tetzlaff | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 |
| Vincenzo | Trucco | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 |
| Ray | Gilhooly | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 |
| F. C. | Fenner | Relief | drove | only | ||||||
| Harvey | Herrick | Entered as | relief driver | may not | have driven |