William Peter Knipper
Birthplace: Rochester, New York
Born: August 9, 1882
Died: September 7, 1968
Willie Knipper
William Peter Knipper
Birthplace: Rochester, New York
Born: August 9, 1882
Died: September 7, 1968
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Crown Point | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 |
| Denver-RC | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | |
| Elgin | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Indianapolis | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |
| Long Island | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | |
| Lowell | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | |
| Savannah | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Sioux City | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Benz | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 |
| Chalmers-Detroit | 4 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | |
| Delage | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Duesenberg | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 |
| Keeton | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |
| Lancia | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| Mercer | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Peugeot | Entered | as relief | driver | did not | appear | in race | |||
| Stutz | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Benz | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 |
| Chalmers-Detroit | 4 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | |
| Delage | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Duesenberg | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 |
| Lancia | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| Mercer | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Peugeot | Entered | as relief | driver | did not | appear | in race | |||
| Wisconsin | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 13 | 0 |