Pirates || colspan=6 | Postponed (rain); Makeup: July 29 as a traditional double-header |- style="background:#bfb" | 7 || April 23 || Pirates || 5–4 (11) || Bucky Brandon (1–0) || Bob Miller (0–1) || None || 43,438 || 4–3 |- style="background:#bfb" | 8 || April 25 || @ Giants || 3–0 || Steve Carlton (3–0) || Juan Marichal (1–2) || None || 6,092 || 5–3 |- style="background:#fbb" | 9 || April 26 || @ Giants || 6–8 (10) || Jerry Johnson (1–0) || Bucky Brandon (1–1) || None || 4,139 || 5–4 |- style="background:#bfb" | 10 || April 27 || @ Giants || 7–6 || Wayne Twitchell (1–0) || Ron Bryant (0–1) || None || 3,671 || 6–4 |- style="background:#bfb" | 11 || April 28 || @ Padres || 3–0 || Woodie Fryman (1–0) || Clay Kirby (2–1) || None || 7,272 || 7–4 |- style="background:#fbb" | 12 || April 29 || @ Padres || 0–4 || Steve Arlin (1–3) || Steve Carlton (3–1) || None || 7,859 || 7–5 |- style="background:#bfb" | 13 || April 30 (1) || @ Padres || 6–1 || Barry Lersch (1–0) || Bill Greif (1–3) || None || see 2nd game || 8–5 |- style="background:#bfb" | 14 || April 30 (2) || @ Padres || 3–1 || Bill Champion (2–0) || Mike Corkins (0–1) || None || 8,411 || 9–5 |- |- style="background:#bfb" | 15 || May 1 || @ Dodgers || 2–1 || Dick Selma (1–1) || Claude Osteen (2–1) || None || 15,015 || 10–5 |- style="background:#fbb" | 16 || May 2 || @ Dodgers || 6–7 || Jim Brewer (1–0) || Barry Lersch (1–1) || None || 14,770 || 10–6 |- style="background:#bfb" | 17 || May 3 || @ Dodgers || 5–1 || Steve Carlton (4–1) || Bill Singer (2–2) || None || 14,314 || 11–6 |- style="background:#bfb" | 18 || May 5 || Giants || 3–2 || Bill Champion (3–0) || Juan Marichal (1–4) || None || 22,161 || 12–6 |- style="background:#fbb" | 19 || May 6 || Giants || 1–3 || Sam McDowell (4–0) || Dick Selma (1–2) || None || 14,010 || 12–7 |- style="background:#bfb" | 20 || May 7 || Giants || 8–3 || Steve Carlton (5–1) || Ron Bryant (0–2) || None || 44,880 || 13–7 |- style="background:#bbb" | – || May 9 || Padres || colspan=6 | Postponed (rain); Makeup: July 7 as a traditional