|| 2–10 || Warren Spahn (7–3) || Don Cardwell (3–3) || None || 29,465 || 29–23–2 |- style="background:#fbb" | 55 || June 15 || Braves || 2–7 || Bob Buhl (6–2) || Harvey Haddix (4–4) || None || 12,178 || 29–24–2 |- style="background:#fbb" | 56 || June 16 (1) || Braves || 2–3 || Juan Pizarro (3–5) || Bob Miller (1–2) || None || see 2nd game || 29–25–2 |- style="background:#bfb" | 57 || June 16 (2) || Braves || 1–0 || Curt Simmons (5–3) || Lew Burdette (5–3) || None || 30,520 || 30–25–2 |- style="background:#bfb" | 58 || June 18 || @ Cubs || 7–6 || Jim Hearn (1–1) || Dave Hillman (0–4) || None || 6,092 || 31–25–2 |- style="background:#fbb" | 59 || June 19 (1) || @ Cubs || 0–9 || Dick Drott (6–6) || Don Cardwell (3–4) || None || see 2nd game || 31–26–2 |- style="background:#fbb" | 60 || June 19 (2) || @ Cubs || 3–4 || Moe Drabowsky (4–5) || Bob Miller (1–3) || Turk Lown (5) || 10,939 || 31–27–2 |- style="background:#bfb" | 61 || June 20 || @ Cubs || 7–2 || Harvey Haddix (5–4) || Don Kaiser (2–5) || None || 5,210 || 32–27–2 |- style="background:#bfb" | 62 || June 21 || @ Braves || 6–1 || Curt Simmons (6–3) || Lew Burdette (5–4) || None || 33,533 || 33–27–2 |- style="background:#bfb" | 63 || June 22 || @ Braves || 4–2 || Jack Sanford (9–1) || Bob Trowbridge (2–1) || None || 25,498 || 34–27–2 |- style="background:#fbb" | 64 || June 23 (1) || @ Braves || 6–7 || Bob Buhl (8–2) || Robin Roberts (6–9) || None || see 2nd game || 34–28–2 |- style="background:#fbb" | 65 || June 23 (2) || @ Braves || 3–7 || Taylor Phillips (3–2) || Seth Morehead (0–1) || Bob Trowbridge (1) || 36,037 || 34–29–2 |- style="background:#bfb" | 66 || June 24 || @ Braves || 10–4 || Harvey Haddix (6–4) || Warren Spahn (7–5) || Jim Hearn (2) || 15,600 || 35–29–2 |- style="background:#bfb" | 67 || June 26 || @ Cardinals || 11–3 || Curt Simmons (7–3) || Lindy McDaniel (7–4) || None || 14,192 || 36–29–2 |- style="background:#fbb" | 68 || June 27 || @ Cardinals || 4–6 || Von McDaniel (3–0) || Jack Sanford (9–2) || Hoyt Wilhelm (7) || 25,133 || 36–30–2 |- style="background:#fbb" |