2004 Colorado Rockies season Game log April

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| April 6 | @ Diamondbacks | 6–2 | Johnson (0–1) | 46949 | 1–0 |
| April 7 | @ Diamondbacks | 9–4 | Jennings (0–1) | 25918 | 1–1 |
| April 8 | @ Diamondbacks | 6–5 (11) | Chacón (0–1) | 26448 | 1–2 |
| April 9 | @ Dodgers | 5–1 | Elarton (0–1) | 54599 | 1–3 |
| April 10 | @ Dodgers | 7–4 | Stark (0–1) | 35318 | 1–4 |
| April 11 | @ Dodgers | 4–2 | Pérez (0–1) | 27076 | 2–4 |
| April 12 | Diamondbacks | 7–4 | Koplove (0–1) | 48013 | 3–4 |
| April 14 | Diamondbacks | 14–4 | Dessens (0–1) | 23128 | 4–4 |
| April 15 | Diamondbacks | 11–10 | Elarton (0–2) | 22320 | 4–5 |
| April 16 | @ Cardinals | 13–5 | Stark (0–2) | 34541 | 4–6 |
| April 17 | @ Cardinals | 8–4 | Estes (2–1) | 46471 | 4–7 |