2004 Colorado Rockies season Game log April

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| April 18 | @ Cardinals | 8–5 | Williams (0–1) | 34697 | 5–7 |
| April 20 | Dodgers | 7–1 | Ishii (2–1) | 22169 | 6–7 |
| April 21 | Dodgers | 9–4 | Elarton (0–3) | 21685 | 6–8 |
| April 22 | Dodgers | 7–1 (6) | Lima (2–1) | 19667 | 7–8 |
| April 23 | Astros | 13–7 | Jennings (1–2) | 23719 | 7–9 |
| April 24 | Astros | 8–5 | Fassero (0–1) | 35260 | 7–10 |
| April 25 | Astros | 4–1 | Miller (2–2) | 30912 | 8–10 |
| April 26 | Marlins | 6–3 | Elarton (0–4) | 20009 | 8–11 |
| April 27 | Marlins | 13–10 | Fox (0–1) | 20615 | 9–11 |
| April 28 | Marlins | 9–4 | Jennings (1–3) | 27402 | 9–12 |