2005 Colorado Rockies season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | @ Dodgers | 2–1 | Chacón (1–1) | 46243 | 6–16 |
| May 2 | @ Padres | 5–4 | Francis (1–1) | 20966 | 6–17 |
| May 3 | @ Padres | 2–1 | Witasick (0–1) | 22547 | 6–18 |
| May 4 | @ Padres | 8–7 (12) | Carvajal (0–1) | 25444 | 6–19 |
| May 6 | @ Marlins | 7–0 | Kennedy (1–4) | 21566 | 6–20 |
| May 7 | @ Marlins | 4–1 | Chacón (1–2) | 26218 | 6–21 |
| May 8 | @ Marlins | 8–3 | Leiter (1–3) | 17538 | 7–21 |
| May 9 | Braves | 7–6 | Hudson (3–2) | 20307 | 8–21 |
| May 10 | Braves | 9–5 | Jennings (1–4) | 20415 | 8–22 |
| May 11 | Braves | 6–5 | Kolb (1–3) | 19631 | 9–22 |
| May 12 | Diamondbacks | 6–3 | Chacón (1–3) | 18184 | 9–23 |