2004 Colorado Rockies season Game log September

| Date_ | Opponent | Score | Loss | Record |
|---|---|---|---|---|
| September 1 | @ Giants | 4–1 | Rueter (7–11) | 56–76 |
| September 2 | @ Giants | 6–5 | Schmidt (15–6) | 57–76 |
| September 3 | @ Padres | 7–6 | Dohmann (0–2) | 57–77 |
| September 4 | @ Padres | 8–2 | Tankersley (0–5) | 58–77 |
| September 5 | @ Padres | 5–2 | Lawrence (13–12) | 59–77 |
| September 7 | Giants | 8–7 | Christiansen (4–3) | 60–77 |
| September 8 | Giants | 5–3 | Reed (3–5) | 60–78 |
| September 9 | Padres | 9–7 | Linebrink (7–2) | 61–78 |
| September 10 | Padres | 10–4 | Harikkala (6–4) | 61–79 |
| September 11 | Padres | 13–2 | Eaton (9–13) | 62–79 |
| September 12 | Padres | 15–2 | Reed (3–6) | 62–80 |
| September 13 | @ Diamondbacks | 9–2 | Fossum (4–13) | 63–80 |
| September 14 | @ Diamondbacks | 4–3 (13) | Reed (3–7) | 63–81 |