Jepsen Trophy Race
Santa Monica Road Race Course
8.417 Mile Road Course
18 Laps/151.506 Miles
May 4, 1912
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 5 | Ralph DePalma | 5 | Mercer | Mercer | Mercer | 18 | 2:10:43.85 69.535 | 300* |
| 2 | 6 | Joe Nikrent | 6 | Case | Case | Case | 18 | 2:14:25.80 67.622 | 160* |
| 3 | 2 | Louis Disbrow | 2 | Case | Case | Case | 18 | 2:22:08.75 63.951 | 90* |
| 4 | 7 | Scott Miller | 7 | Warren-Detroit | Warren-Detroit | Warren-Detroit | 15 | Flagged | 50* |
| 5 | 8 | Hal Shain | 8 | Schacht | Schacht | Schacht | 12 | Flagged | 30* |
| 6 | 1 | Earl DeVore | 1 | Buick | Buick | Buick | 6 | Broken camshaft | |
| 7 | 4 | Rupert Jeffkins | 4 | Mercer | Mercer | Mercer | 2 | Magneto | |
| 8 | 3 | Frank Siefert | 3 | Midland | Midland | Midland | 1 | Magneto | |
| -- | -- | Herb Brown | 7 | Warren-Detroit | Warren-Detroit | Warren-Detroit | -- | Driven by S. Miller | |
| -- | -- | Harvey Herrick | X | Case | Case | Case | -- | Withdrew |
| Lap Leaders | Total | Laps |
| Ralph DePalma | 15 | 1, 3-4, 7-18 |
| Earl DeVore | 2 | 5-6 |
| Louis Disbrow | 1 | 2 |