2004 Boston Red Sox season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | @ Rangers | 4 - 3 | Malaska (1-1) | 44598 | 15-7 |
| May 1 | @ Rangers | 8 - 5 | Martínez (3-2) | 44598 | 15-8 |
| May 2 | @ Rangers | 4 - 1 | Wakefield (2-1) | 31538 | 15-9 |
| May 3 | @ Indians | 4 - 3 | Schilling (3-2) | 16285 | 15-10 |
| May 4 | @ Indians | 7 - 6 | Lowe (3-2) | 16070 | 15-11 |
| May 5 | @ Indians | 9 - 5 | D`Amico (1-2) | 17370 | 16-11 |
| May 6 | @ Indians | 5 - 2 | Sabathia (1-1) | 26825 | 17-11 |
| May 7 | Royals | 7 - 6 | MacDougal (0-1) | 35280 | 18-11 |
| May 8 | Royals | 9 - 1 | Gobble (1-1) | 34929 | 19-11 |