2003 Boston Red Sox season Game log September

| Date_ | Opponent | Score | Loss | Save_ |
|---|---|---|---|---|
| September 14 | White Sox | 7–2 | Burkett (10–8) | Marte (11) |
| September 15 | Devil Rays | 8–2 | Sosa (5–11) | ||33,389||87–62 |
| September 16 | Devil Rays | 3–2 | Harper (4–8) | ||33,618||88–62 |
| September 17 | Devil Rays | 7–0 | Suppan (12–10) | ||33,806||88–63 |
| September 18 | Devil Rays | 4–3 | Bell (4–4) | Kim (14) |
| September 19 | @ Indians | 2–0 | Stanford (0–3) | Embree (1) |
| September 20 | @ Indians | 13–4 | Lowe (16–7) | ||23,242||90–64 |
| September 21 | @ Indians | 2–0 | Cliff Lee (3–2) | Kim (15) |
| September 22 | Orioles | 7–5 | Johnson (10–9) | Kim (16) |
| September 23 | Orioles | 6–5 10 | Ainsworth (5–5) | ||33,723||93–64 |
| September 24 | Orioles | 7–3 | Burkett (11–9) | ||34,607||93–65 |
| September 25 | Orioles | 14–3 | Daal (4–11) | ||34,526||94–65 |
| September 26 | @ Devil Rays | 7–2 | González (6–11) | ||21,240||95–65 |