|| None || 27,780 || 6–2 |- style="background:#bfb" | 9 || April 19 || Cubs || 7–3 || Nino Espinosa (1–0) || Rick Reuschel (0–2) || None || 30,204 || 7–2 |- style="background:#fbb" | 10 || April 20 || @ Expos || 8–9 || Steve Rogers (1–0) || Tug McGraw (1–1) || Woodie Fryman (2) || 24,817 || 7–3 |- style="background:#fbb" | 11 || April 21 || @ Expos || 3–10 || Scott Sanderson (2–0) || Dick Ruthven (2–1) || None || 10,887 || 7–4 |- style="background:#fbb" | 12 || April 22 || @ Expos || 3–4 (11) || Elías Sosa (1–0) || Tug McGraw (1–2) || None || 14,176 || 7–5 |- style="background:#bfb" | 13 || April 24 || @ Cubs || 6–4 || Steve Carlton (3–0) || Rick Reuschel (0–3) || Ron Reed (1) || 6,274 || 8–5 |- style="background:#bfb" | 14 || April 25 || @ Cubs || 7–5 || Sparky Lyle (1–1) || Dick Tidrow (1–2) || None || 10,990 || 9–5 |- style="background:#bfb" | 15 || April 26 || @ Cubs || 6–2 || Marty Bystrom (1–0) || Bill Caudill (0–1) || None || 10,093 || 10–5 |- style="background:#bfb" | 16 || April 27 || Expos || 3–1 || Dick Ruthven (3–1) || Bill Gullickson (1–1) || None || 27,347 || 11–5 |- style="background:#fbb" | 17 || April 28 || Expos || 3–6 || Steve Ratzer (1–0) || Larry Christenson (1–2) || Elías Sosa (1) || 26,192 || 11–6 |- style="background:#bfb" | 18 || April 29 || Expos || 6–2 || Steve Carlton (4–0) || Steve Rogers (2–1) || None || 30,142 || 12–6 |- |- style="background:#bbb" | – || May 1 || Giants || colspan=6 | Postponed (rain); Makeup: May 2 as a traditional double-header |- style="background:#fbb" | 19 || May 2 (1) || Giants || 2–6 || Doyle Alexander (4–1) || Nino Espinosa (1–1) || Greg Minton (4) || see 2nd game || 12–7 |- style="background:#bfb" | 20 || May 2 (2) || Giants || 3–1 || Marty Bystrom (2–0) || Ed Whitson (0–3) || None || 27,376 || 13–7 |- style="background:#bfb" | 21 || May 3 || Giants || 7–5 || Dick Ruthven (4–1) || Gary Lavelle (0–2) || Tug McGraw (2) || 41,283 || 14–7 |- style="background:#bfb" | 22 || May 4 || Giants || 6–4 || Steve Carlton (5–0) || Allen Ripley (1–3) || None || 25,492 || 15–7 |-