|| @ Mets || 2–4 || Jon Matlack (9–5) || Wayne Twitchell (4–8) || None || 27,935 || 40–32 |- style="background:#fbb" | 73 || June 28 || @ Mets || 2–5 || Randy Tate (3–6) || Steve Carlton (6–6) || None || 37,250 || 40–33 |- style="background:#bfb" | 74 || June 29 (1) || @ Mets || 9–6 || Larry Christenson (3–1) || Jerry Koosman (6–6) || Tug McGraw (8) || see 2nd game || 41–33 |- style="background:#bfb" | 75 || June 29 (2) || @ Mets || 4–3 (12) || Tug McGraw (5–3) || Tom Hall (1–2) || None || 45,723 || 42–33 |- style="background:#fbb" | 76 || June 30 || Cardinals || 2–4 || Bob Forsch (8–6) || Jim Lonborg (6–6) || Al Hrabosky (11) || 28,264 || 42–34 |- |- style="background:#fbb" | 77 || July 1 || Cardinals || 5–6 || Lynn McGlothen (10–5) || Wayne Twitchell (4–9) || Al Hrabosky (12) || 22,544 || 42–35 |- style="background:#bfb" | 78 || July 2 || Cardinals || 5–3 || Steve Carlton (7–6) || Ron Reed (8–8) || None || 21,843 || 43–35 |- style="background:#bfb" | 79 || July 3 || Cardinals || 7–4 || Tom Underwood (9–5) || Bob Gibson (2–7) || None || 16,068 || 44–35 |- style="background:#fbb" | 80 || July 4 || Mets || 3–4 || Tom Seaver (12–4) || Tug McGraw (5–4) || Rick Baldwin (4) || 55,301 || 44–36 |- style="background:#bfb" | 81 || July 5 (1) || Mets || 8–2 || Ron Schueler (3–1) || Randy Tate (3–7) || None || see 2nd game || 45–36 |- style="background:#bfb" | 82 || July 5 (2) || Mets || 10–7 || Jim Lonborg (7–6) || Nino Espinosa (0–1) || Gene Garber (4) || 50,137 || 46–36 |- style="background:#bfb" | 83 || July 6 || Mets || 8–6 || Wayne Twitchell (5–9) || Jon Matlack (10–6) || Gene Garber (5) || 27,037 || 47–36 |- style="background:#fbb" | 84 || July 7 || @ Reds || 3–7 || Pat Darcy (4–5) || Steve Carlton (7–7) || None || 25,096 || 47–37 |- style="background:#fbb" | 85 || July 8 || @ Reds || 1–2 || Gary Nolan (8–5) || Tom Underwood (9–6) || Rawly Eastwick (4) || 28,479 || 47–38 |- style="background:#fbb" | 86 || July 9 || @ Reds || 7–9 || Pedro Borbón (5–1) || Gene Garber (7–5) || None || 28,789 || 47–39 |-