Giants || 7–4 || Gene Conley (5–4) || Sam Jones (8–8) || None || 16,194 || 26–44 |- style="background:#fbb" | 71 || June 28 || @ Giants || 0–6 || Johnny Antonelli (11–4) || Ray Semproch (2–6) || None || 20,793 || 26–45 |- style="background:#fbb" | 72 || June 30 || Pirates || 3–4 || Harvey Haddix (6–6) || Robin Roberts (6–7) || Roy Face (8) || 11,149 || 26–46 |- style="background:#bfb" | 73 || July 1 || Pirates || 1–0 || Gene Conley (6–4) || Ron Kline (6–6) || None || 7,897 || 27–46 |- style="background:#bfb" | 74 || July 2 || Reds || 7–6 || Don Cardwell (2–5) || Jim Brosnan (3–4) || Turk Farrell (3) || || 28–46 |- style="background:#fbb" | 75 || July 2 || Reds || 4–8 || Don Newcombe (9–4) || Rubén Gómez (1–6) || None || 15,428 || 28–47 |- style="background:#fbb" | 76 || July 3 || Reds || 1–6 || Jim O'Toole (1–2) || Jim Owens (4–7) || Brooks Lawrence (1) || 7,184 || 28–48 |- style="background:#bfb" | 77 || July 4 || Braves || 2–1 || Robin Roberts (7–7) || Lew Burdette (11–8) || None || 16,775 || 29–48 |- style="background:#fbb" | 78 || July 5 || Braves || 0–5 || Carl Willey (4–2) || Gene Conley (6–5) || None || 9,768 || 29–49 |- style="background:#bbcaff;" | – || July 7 ||colspan=7 |1959 Major League Baseball All-Star Game at Forbes Field in Pittsburgh |- style="background:#bfb" | 79 || July 9 || Cardinals || 11–0 || Gene Conley (7–5) || Ernie Broglio (3–6) || None || || 30–49 |- style="background:#fbb" | 80 || July 9 || Cardinals || 2–6 || Larry Jackson (8–7) || Robin Roberts (7–8) || None || 20,282 || 30–50 |- style="background:#fbb" | 81 || July 10 || Cardinals || 7–9 || Vinegar Bend Mizell (10–3) || Jim Owens (4–8) || Lindy McDaniel (10) || 6,946 || 30–51 |- style="background:#fbb" | 82 || July 11 || Cardinals || 3–4 || Marshall Bridges (3–0) || Don Cardwell (2–6) || Dean Stone (1) || 4,815 || 30–52 |- style="background:#fbb" | 83 || July 12 || Cubs || 6–7 || Art Ceccarelli (1–0) || Rubén Gómez (1–7) || Bill Henry (7) || || 30–53 |- style="background:#bfb" | 84 || July 12 || Cubs || 4–1 || Ray Semproch (3–6) || Moe Drabowsky (4–7) || None || 6,519 || 31–53 |- style="background:#bbb" |