2004 Colorado Rockies season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 1 | Diamondbacks | 10–2 | González (0–4) | 24193 | 47–58 |
| August 3 | Cubs | 5–3 | Fassero (2–7) | 40716 | 47–59 |
| August 4 | Cubs | 11–8 | Chacón (1–7) | 45305 | 47–60 |
| August 5 | Cubs | 5–1 | Jennings (10–9) | 38195 | 47–61 |
| August 6 | Reds | 8–5 | Claussen (1–2) | 26187 | 48–61 |
| August 7 | Reds | 9–5 | Wilson (9–3) | 33649 | 49–61 |
| August 8 | Reds | 14–7 | Fassero (2–8) | 28721 | 49–62 |
| August 9 | @ Phillies | 4–2 | Jones (8–3) | 42031 | 50–62 |
| August 10 | @ Phillies | 5–4 | Worrell (3–5) | 36636 | 51–62 |
| August 11 | @ Phillies | 15–4 | Jennings (10–10) | 40634 | 51–63 |
| August 12 | @ Phillies | 3–1 | Lidle (7–11) | 37464 | 52–63 |