2003 Colorado Rockies season Game log July

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| July 12 | Dodgers | 5–3 | Ashby (2–6) | 41696 | 50–46 |
| July 13 | Dodgers | 9–3 | Neagle (2–3) | 32483 | 50–47 |
| July 17 | @ Giants | 8–4 | Jennings (9–7) | 41052 | 50–48 |
| July 18 | @ Giants | 7–0 | Oliver (7–6) | 41690 | 50–49 |
| July 19 | @ Giants | 5–3 | Chacón (11–5) | 42607 | 50–50 |
| July 20 | @ Giants | 8–4 | Neagle (2–4) | 42620 | 50–51 |
| July 21 | @ Dodgers | 4–1 | Ashby (2–7) | 27243 | 51–51 |
| July 22 | @ Dodgers | 5–2 | Jennings (9–8) | 30416 | 51–52 |
| July 23 | @ Dodgers | 8–3 | Ishii (9–4) | 33589 | 52–52 |
| July 24 | @ Dodgers | 1–0 (11) | López (2–1) | 33144 | 52–53 |
| July 25 | Brewers | 7–3 | Obermueller (0–1) | 39013 | 53–53 |
| July 26 | Brewers | 13–8 | De Los Santos (1–3) | 40675 | 54–53 |