Chicago Auto Club Trophy Race
Elgin Road Race Course
8.384 Mile Road Course
36 Laps/301.824 Miles
August 29, 1913
| Finish | Start | Driver | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
Points |
| 1 | 2 | Ralph DePalma | 21 | Mercer | Mercer | Mercer | 36 | 4:31:56.90 66.595 | 600* |
| 2 | 1 | Joe Dawson | 20 | Deltal | Mercer | Mercer | 36 | 4:39:52.75 64.708 | 320* |
| 3 | 4 | Billy Chandler | 24 | Mason | Duesenberg | Duesenberg | 31 | Flagged | 170* |
| 4 | 6 | Harry Endicott | 25 | Endicott | Nyberg | Nyberg | 30 | Broken water pipe | |
| 5 | 3 | Eddie Rickenbacker | 22 | Mason | Duesenberg | Duesenberg | 27 | Flagged | 90* |
| 6 | 4 | Spencer Wishart | 23 | Mercer | Mercer | Mercer | 23 | Broken spring | |
| 7 | 8 | Charles Luttrell | 27 | Mercer | Mercer | Mercer | 14 | Burned bearing | |
| 8 | 7 | Ralph Mulford | 26 | Mason | Duesenberg | Duesenberg | 10 | Sheared flywheel | |
| -- | -- | Al Schillo | 27 | Mercer | Mercer | Mercer | -- | Driven by Luttrell |
Known riding mechanics in this race:
| Finish | Start | Driver | Mechanic | Car # | Sponsor/Name | Chassis | Engine | Laps | Status |
| 1 | 2 | Ralph DePalma | Andy Vollman | 21 | Mercer | Mercer | Mercer | 36 | 4:31:56.90 66.595 |
| 2 | 1 | Joe Dawson | Harry Goetz | 20 | Deltal | Mercer | Mercer | 36 | 4:39:52.75 64.708 |
| 3 | 4 | Billy Chandler | Buddy Jones | 24 | Mason | Duesenberg | Duesenberg | 31 | Flagged |
| 5 | 3 | Eddie Rickenbacker | Eddie O'Donnell | 22 | Mason | Duesenberg | Duesenberg | 27 | Flagged |
| 6 | 4 | Spencer Wishart | Jack Jenter | 23 | Mercer | Mercer | Mercer | 23 | Broken spring |
| 7 | 8 | Charles Luttrell | R. Haynes | 27 | Mercer | Mercer | Mercer | 14 | Burned bearing |
| 8 | 7 | Ralph Mulford | Fritz Walker | 26 | Mason | Duesenberg | Duesenberg | 10 | Sheared flywheel |
| Lap Leaders | Total | Laps |
| Ralph DePalma | 26 | 11-36 |
| Ralph Mulford | 5 | 1, 7-10 |
| Eddie Rickenbacker | 5 | 2-6 |