2003 Boston Red Sox season Game log September

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| September 1 | @ Phillies | 13–9 | Mesa (5–7) | ||61,068||79–58 |
| September 2 | @ White Sox | 2–1 | Colón (12–12) | Kim (12) |
| September 3 | @ White Sox | 5–4 10 | Gordon (6–6) | ||20,082||81–58 |
| September 5 | @ Yankees | 9–3 | Pettitte (17–8) | ||55,261||82–58 |
| September 6 | @ Yankees | 12–0 | Clemens (13–9) | ||55,237||83–58 |
| September 7 | @ Yankees | 3–1 | Suppan (11–9) | Rivera (33) |
| September 8 | @ Orioles | 13–10 | Kim (8–10) | ||23,276||83–60 |
| September 9 | @ Orioles | 9–2 | Moss (10–11) | ||25,265||84–60 |
| September 10 | @ Orioles | 5–0 | Johnson (10–7) | ||25,143||85–60 |
| September 12 | White Sox | 7–4 | Wright (1–6) | Kim (13) |
| September 13 | White Sox | 3–1 | Wakefield (10–7) | ||34,414||86–61 |