April 27 || Padres || 2–0 || Nino Espinosa (3–0) || Gaylord Perry (2–1) || None || 28,522 || 12–4 |- style="background:#fbb" | 18 || April 28 || Padres || 0–5 || John D'Acquisto (2–1) || Steve Carlton (2–3) || None || 31,633 || 12–5 |- style="background:#bfb" | 19 || April 29 || Padres || 4–3 || Ron Reed (3–1) || Rollie Fingers (1–2) || None || 50,722 || 13–5 |- style="background:#bfb" | 20 || April 30 || Giants || 4–1 || Dick Ruthven (4–0) || Philip Nastu (0–1) || Tug McGraw (3) || 29,169 || 14–5 |- |- style="background:#fbb" | 21 || May 1 || Giants || 0–7 || Bob Knepper (2–2) || Nino Espinosa (3–1) || None || 29,048 || 14–6 |- style="background:#fbb" | 22 || May 3 || @ Dodgers || 2–5 || Rick Sutcliffe (2–2) || Steve Carlton (2–4) || None || 41,215 || 14–7 |- style="background:#bfb" | 23 || May 4 || @ Dodgers || 5–2 || Randy Lerch (2–1) || Don Sutton (3–3) || None || 42,717 || 15–7 |- style="background:#bfb" | 24 || May 5 || @ Dodgers || 11–0 || Dick Ruthven (5–0) || Andy Messersmith (1–2) || None || 45,169 || 16–7 |- style="background:#bfb" | 25 || May 6 || @ Dodgers || 4–0 || Nino Espinosa (4–1) || Doug Rau (0–4) || None || 42,184 || 17–7 |- style="background:#bfb" | 26 || May 7 || @ Padres || 11–6 || Steve Carlton (3–4) || Bob Owchinko (0–1) || Rawly Eastwick (1) || 20,766 || 18–7 |- style="background:#bfb" | 27 || May 8 || @ Padres || 9–8 (12) || Jim Kaat (1–0) || John D'Acquisto (2–3) || None || 12,288 || 19–7 |- style="background:#bfb" | 28 || May 9 || @ Padres || 2–0 || Dick Ruthven (6–0) || Eric Rasmussen (0–3) || None || 15,606 || 20–7 |- style="background:#bfb" | 29 || May 10 || @ Padres || 3–2 || Nino Espinosa (5–1) || Gaylord Perry (3–3) || Ron Reed (2) || 17,208 || 21–7 |- style="background:#fbb" | 30 || May 11 || @ Giants || 1–2 || Bob Knepper (3–2) || Steve Carlton (3–5) || Gary Lavelle (4) || 22,860 || 21–8 |- style="background:#fbb" | 31 || May 12 || @ Giants || 1–4 || Ed Halicki (3–3) || Randy Lerch (2–2) || None || 23,836 || 21–9 |- style="background:#bfb" | 32 || May 13 || @ Giants