@ Dodgers || 10–11 || Art Fowler (3–2) || Jim Hearn (0–2) || None || 13,524 || 11–15 |- style="background:#fbb" | 27 || May 12 || @ Dodgers || 1–3 || Danny McDevitt (2–1) || Gene Conley (1–1) || None || 12,562 || 11–16 |- style="background:#fbb" | 28 || May 13 || @ Giants || 0–6 || Sam Jones (3–4) || Rubén Gómez (0–2) || None || 5,128 || 11–17 |- style="background:#fbb" | 29 || May 14 || @ Giants || 0–8 || Mike McCormick (1–2) || Ray Semproch (2–2) || None || 6,235 || 11–18 |- style="background:#fbb" | 30 || May 15 || @ Cardinals || 2–8 || Vinegar Bend Mizell (4–1) || Robin Roberts (2–2) || None || 6,003 || 11–19 |- style="background:#fbb" | 31 || May 16 || @ Cardinals || 2–8 || Gary Blaylock (3–1) || Jim Owens (1–3) || None || 6,609 || 11–20 |- style="background:#bbb" | – || May 17 || @ Cardinals || colspan=6 | Postponed (rain); |- style="background:#bbb" | – || May 17 || @ Cardinals || colspan=6 | Postponed (rain); |- style="background:#fbb" | 32 || May 19 || @ Cubs || 7–8 || Don Elston (3–1) || Taylor Phillips (0–3) || None || 2,436 || 11–21 |- style="background:#fbb" | 33 || May 20 || @ Cubs || 5–7 || Moe Drabowsky (2–3) || Don Cardwell (0–2) || Don Elston (7) || 4,825 || 11–22 |- style="background:#bfb" | 34 || May 21 || @ Cubs || 3–0 || Rubén Gómez (1–2) || Bob Anderson (2–3) || None || 3,725 || 12–22 |- style="background:#fbb" | 35 || May 22 || Braves || 5–10 || Lew Burdette (7–2) || Robin Roberts (2–3) || None || 24,043 || 12–23 |- style="background:#bfb" | 36 || May 23 || Braves || 4–2 || Jim Owens (2–3) || Warren Spahn (5–5) || None || 8,346 || 13–23 |- style="background:#bfb" | 37 || May 24 || Braves || 6–0 || Gene Conley (2–1) || Joey Jay (2–2) || None || || 14–23 |- style="background:#fbb" | 38 || May 24 || Braves || 3–8 || Carl Willey (2–1) || Taylor Phillips (0–4) || None || 26,646 || 14–24 |- style="background:#bfb" | 39 || May 25 || Braves || 7–3 || Don Cardwell (1–2) || Bob Buhl (2–3) || Ray Semproch (1) || 16,681 || 15–24 |- style="background:#fbb" | 40 || May 26 || @ Reds || 1–2 || Don Newcombe