2013 6 Hours of Circuit of the Americas
The 2013 6 Hours of Circuit of the Americas was an endurance auto race held at the Circuit of the Americas in Austin, Texas on 20–22 September 2013.
Qualifying
Qualifying result
Pole position winners in each class are marked in bold.| Pos | Class | Team | Average Time | Grid |
| 1 | LMP1 | No. 2 Audi Sport Team Joest | 1:48.355 | 1 |
| 2 | LMP1 | No. 1 Audi Sport Team Joest | 1:48.617 | 2 |
| 3 | LMP1 | No. 8 Toyota Racing | 1:49.696 | 3 |
| 4 | LMP1 | No. 12 Rebellion Racing | 1:52.081 | 4 |
| 5 | LMP2 | No. 26 G-Drive Racing | 1:54.951 | 5 |
| 6 | LMP2 | No. 24 OAK Racing | 1:55.961 | 6 |
| 7 | LMP2 | No. 35 OAK Racing | 1:56.033 | 7 |
| 8 | LMP2 | No. 49 Pecom Racing | 1:56.248 | 8 |
| 9 | LMP2 | No. 25 Delta-ADR | 1:57.067 | 9 |
| 10 | LMP2 | No. 31 Lotus | 1:57.817 | 10 |
| 11 | LMP2 | No. 41 Greaves Motorsport | 1:57.940 | 11 |
| 12 | LMP2 | No. 32 Lotus | 1:59.453 | 12 |
| 13 | LMGTE Pro | No. 99 Aston Martin Racing | 2:04.628 | 14 |
| 14 | LMGTE Pro | No. 91 Porsche AG Team Manthey | 2:04.898 | 15 |
| 15 | LMGTE Pro | No. 98 Aston Martin Racing | 2:04.919 | 16 |
| 16 | LMGTE Pro | No. 71 AF Corse | 2:05.073 | 17 |
| 17 | LMGTE Pro | No. 92 Porsche AG Team Manthey | 2:05.088 | 18 |
| 18 | LMGTE Pro | No. 97 Aston Martin Racing | 2:05.214 | 19 |
| 19 | LMGTE Pro | No. 51 AF Corse | 2:05.348 | 20 |
| 20 | LMGTE Am | No. 81 8 Star Motorsports | 2:06.515 | 21 |
| 21 | LMGTE Am | No. 95 Aston Martin Racing | 2:06.528 | 22 |
| 22 | LMGTE Am | No. 61 AF Corse | 2:06.593 | 23 |
| 23 | LMGTE Am | No. 96 Aston Martin Racing | 2:07.117 | 24 |
| 24 | LMGTE Am | No. 76 IMSA Performance Matmut | 2:07.120 | 25 |
| 25 | LMGTE Am | No. 88 Proton Competition | 2:07.931 | 26 |
| 26 | LMGTE Am | No. 50 Larbre Compétition | 2:08.132 | 27 |
| 27 | LMGTE Am | No. 57 Krohn Racing | 2:10.029 | 28 |
| 28 | LMP2 | No. 45 OAK Racing | 2:00.870 | 13 |
Race
Race result
Class winners in bold. Cars failing to complete 70% of winner's distance marked as Not Classified.| Pos | Class | No | Team | Drivers | Chassis | Tyre | Laps |
| Pos | Class | No | Team | Drivers | Engine | Tyre | Laps |
| 1 | LMP1 | 2 |  |