@ Phillies || 7–4 || Worley (2–0) || Marquis (3–1) || || 44,123 || 14–16 |- align="center" bgcolor="ffbbbb" | 31 || May 5 || @ Phillies || 7–3 || Halladay (5–1) || Lannan (2–4) || || 45,316 || 14–17 |- align="center" bgcolor="bbffbb" | 32 || May 6 || @ Marlins || 3–2 (10) || Storen (2–1) || Dunn (2–2) || Burnett (4) || 15,325 || 15–17 |- align="center" bgcolor="bbffbb" | 33 || May 7 || @ Marlins || 5–2 || Gorzelanny (2–2) || Volstad (2–2) || Storen (7) || 17,409 || 16–17 |- align="center" bgcolor="ffbbbb" | 34 || May 8 || @ Marlins || 8–0 || Sánchez (2–1) || Hernández (3–4) || || 10,523 || 16–18 |- align="center" bgcolor="bbffbb" | 35 || May 10 || @ Braves || 7–6 || Marquis (4–1) || Hudson (4–3) || Storen (8) || 16,143 || 17–18 |- align="center" bgcolor="bbffbb" | 36 || May 11 || @ Braves || 7–3 (11) || Storen (3–1) || Linebrink (0–1) || || 16,692 || 18–18 |- align="center" bgcolor="ffbbbb" | 37 || May 12 || @ Braves || 6–5 (10) || Kimbrel (1–1) || Slaten (0–1) || || 19,758 || 18–19 |- align="center" bgcolor="ffbbbb" | 38 || May 13 || Marlins || 6–5 (11) || Mujica (4–1) || Broderick (0–1) || Oviedo (13) || 19,503 || 18–20 |- align="center" bgcolor="ffbbbb" | 39 || May 14 || Marlins || 1–0 || Sánchez (3–1) || Hernández (3–5) || Oviedo (14) || 22,497 || 18–21 |- align="center" bgcolor="bbffbb" | 40 || May 15 || Marlins || 8–4 || Marquis (5–1) || Vázquez (2–4) || || 18,356 || 19–21 |- align="center" bgcolor="bbffbb" | 41 || May 16 || Pirates || 4–2 || Kimball (1–0) || Maholm (1–6) || Storen (9) || 21,960 || 20–21 |- align="center" bgcolor="bbbbbb" | – || May 17 || Pirates || colspan=6| Postponed (rain) Rescheduled for July 2 as part of a doubleheader |- align="center" bgcolor="ffbbbb" | 42 || May 18 || @ Mets || 3–0 || Niese (3–4) || Gorzelanny (2–3) || Rodríguez (13) || 24,527 || 20–22 |- align="center" bgcolor="ffbbbb" | 43 || May 19 || @ Mets || 1–0 || Gee (3–0) || Hernández (3–6) || Rodríguez (14) || 26,835 || 20–23 |- align="center" bgcolor="bbffbb" | 44 || May 20 || @ Orioles || 17 – 5 || Rodríguez (1–0) || Arrieta (5–2) || || 24,442 || 21–23 |- align="center" bgcolor="ffbbbb" | 45 || May 21