2008 Arizona Diamondbacks season Game log September

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| September 1 | Cardinals | 8-6 | McClellan (2-7) | 35075 | 70-67 |
| September 2 | Cardinals | 8-2 | Petit (3-4) | 27568 | 70-68 |
| September 3 | Cardinals | 4-3 | Perez (2-2) | 24350 | 71-68 |
| September 5 | @ Dodgers | 7-0 | Haren (14-8) | 52270 | 71-69 |
| September 6 | @ Dodgers | 7-2 | Webb (19-7) | 47543 | 71-70 |
| September 7 | @ Dodgers | 5-3 | Rauch (4-6) | 54137 | 71-71 |
| September 8 | @ Giants | 6-2 | Petit (3-5) | 30252 | 71-72 |
| September 9 | @ Giants | 5-4 | Rauch (4-7) | 30518 | 71-73 |
| September 10 | @ Giants | 4-3 | Lyon (2-5) | 30992 | 71-74 |
| September 12 | Reds | 3-2 | Harang (4-16) | 29046 | 72-74 |
| September 13 | Reds | 3-2 (10) | Peña (1-2) | 45075 | 72-75 |