2008 Pittsburgh Pirates season Game log May

| Date_ | Opponent | Score | Loss | Record |
|---|---|---|---|---|
| May 1 | @ Nationals | 3–2 | Grabow (1–1) | 11–17 |
| May 2 | @ Nationals | 11–4 | Lannan (2–3) | 12–17 |
| May 3 | @ Nationals | 9–8 | Maholm (2–3) | 12–18 |
| May 4 | @ Nationals | 5–2 | Snell (2–2) | 12–19 |
| May 6 | Giants | 12–6 | Sánchez (2–2) | 13–19 |
| May 7 | Giants | 3–1 | Zito (0–7) | 14–19 |
| May 8 | Giants | 5–4 | Cain (1–3) | 15–19 |
| May 9 | Braves | 3–2 | Bennett (0–2) | 16–19 |
| May 10 | Braves | 5–2 | James (2–2) | 17–19 |
| May 11 | Braves | Postponed (rain) Rescheduled for May 12 | Postponed (rain) Rescheduled for May 12 | Postponed (rain) Rescheduled for May 12 |
| May 12 | Braves | 5–0 | Jurrjens (4–3) | 18–19 |