2004 Boston Red Sox season Game log September

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| September 1 | Angels | 12 - 7 | Sele (8-2) | 35076 | 78-53 |
| September 2 | Angels | 4 - 3 | Colón (13-11) | 35050 | 79-53 |
| September 3 | Rangers | 2 - 0 | Wasdin (2-3) | 35151 | 80-53 |
| September 4 | Rangers | 8 - 6 | Wakefield (11-8) | 34670 | 80-54 |
| September 5 | Rangers | 6 - 5 | Drese (11-8) | 34652 | 81-54 |
| September 6 | @ Athletics | 8 - 3 | Zito (10-10) | 37839 | 82-54 |
| September 7 | @ Athletics | 7 - 1 | Redman (10-11) | 29659 | 83-54 |
| September 8 | @ Athletics | 8 - 3 | Hudson (11-5) | 39575 | 84-54 |
| September 9 | @ Mariners | 7 - 1 | Wakefield (11-9) | 29656 | 84-55 |