Philadelphia Race (301-450 ci)
Fairmount Park
8.1 Mile Road Course
25 Laps/202.5 Miles
October 9, 1911
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 3 | Louis Disbrow | 16 | National | National | National | 25 | 3:28:22.32 58.308 | 400* |
| 2 | 2 | Gil Andersen | 10 | Stutz | Stutz | Wisconsin | 25 | 3:40:23.05 55.131 | 210* |
| 3 | 1 | Don Herr | 6 | National | National | National | 25 | 3:40:33.87 55.086 | 110* |
| -- | -- | Henry Koopman | X | National | National | National | -- | Practiced but declined to enter |
Known riding mechanics in this race:
| Finish | Start | Driver | Mechanic | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
| 1 | 3 | Louis Disbrow | Heinie Ulbrecht | 16 | National | National | National | 25 | 3:28:22.32 58.308 |
| 2 | 2 | Gil Andersen | Frank Agan | 10 | Stutz | Stutz | Wisconsin | 25 | 3:40:23.05 55.131 |
| 3 | 1 | Don Herr | Harry Martin | 6 | National | National | National | 25 | 3:40:33.87 55.086 |
| Lap Leaders | Total | Laps |
| Louis Disbrow | 25 | 1-25 |