2003 Colorado Rockies season Game log August

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| August 1 | @ Pirates | 12–11 | Bernero (1–13) | 22413 | 56–56 |
| August 2 | @ Pirates | 1–0 | Jennings (10–9) | 37820 | 56–57 |
| August 3 | @ Pirates | 16–4 | D`Amico (6–11) | 16839 | 57–57 |
| August 5 | Phillies | 7–2 | Chacón (11–6) | 28034 | 57–58 |
| August 6 | Phillies | 5–1 | Duckworth (4–6) | 27599 | 58–58 |
| August 7 | Phillies | 4–3 | Millwood (11–8) | 27855 | 59–58 |
| August 8 | Pirates | 13–6 | Mahomes (0–1) | 28362 | 60–58 |
| August 9 | Pirates | 10–4 | Oliver (10–7) | 34611 | 60–59 |
| August 10 | Pirates | 5–3 | Chacón (11–7) | 26904 | 60–60 |
| August 11 | @ Expos | 3–1 | Jennings (10–10) | 6401 | 60–61 |
| August 12 | @ Expos | 6–3 (11) | Biddle (3–5) | 7277 | 61–61 |