William Weightman
William Walker Weightman III
Listed Hometown: Philadelphia, Pennsylvania
Born: 1894 or 1895
Died:
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| Year | Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles | Points | Standing |
| 1916 | AAA | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 240 |
21 |
|
| Inlcudes | ACA | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | NR | |
| 1917 | AAA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 15* | 34* |
| Total | 4 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 240/255* |
| Track Type | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Board Oval | 0 | 1 | 0 | 0 | 0 | 0 | 0 | NS | 0 |
| Dirt Oval | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Road Course | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
| Series | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| AAA | 4 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | |
| ACA | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Start # | Date | Track | Type | Series | Car # | Sponsor/Name | Chassis | Engine | Start | Finish | Laps | Status |
Points |
| -- | 10/28/1916 | Sheepshead Bay 3 | BO | AAA | X | Weightman/Duesenberg | Duesenberg | Duesenberg | -- | -- | -- | Driven by Gish | |
| 1 | 11/16/1916 | Santa Monica 1 | RC | AAA | 21 | Duesenberg | Duesenberg | Duesenberg | 9 | 3 | 35 | 3:42:00.4 79.466 |
240 |
| 2 | 11/18/1916 | Santa Monica 2 | RC | ACA/AAA | 21 | Duesenberg | Duesenberg | Duesenberg | 20 | 5 | 46 | Flagged | |
| 3 | 11/30/1916 | Ascot | DO | AAA | 2 | Duesenberg | Duesenberg | Duesenberg | 7 | 10 | 45 | Twisted crankshaft | |
| 4 | 3/4/1917 | Ascot 1 | DO | AAA | 21 | Weightman | Stutz | Stutz | 7 | 6 | 96 | Flagged |
15* |