@ Giants || 0–10 || Hal Schumacher (10–8) || Kirby Higbe (9–11) || Jumbo Brown (6) || || 40–82–1 |- style="background:#fbb" | 124 || September 4 || @ Giants || 6–7 || Jumbo Brown (4–0) || Kirby Higbe (9–12) || None || 13,039 || 40–83–1 |- style="background:#fbb" | 125 || September 5 || @ Giants || 0–6 || Cliff Melton (11–12) || Ray Harrell (3–6) || None || 1,864 || 40–84–1 |- style="background:#fbb" | 126 || September 6 || @ Dodgers || 1–2 || Luke Hamlin (17–11) || Ike Pearson (2–8) || None || 20,133 || 40–85–1 |- style="background:#fbb" | 127 || September 8 || @ Dodgers || 2–11 || Bill Crouch (1–0) || Kirby Higbe (9–13) || None || || 40–86–1 |- style="background:#fbb" | 128 || September 8 || @ Dodgers || 1–3 || Vito Tamulis (8–6) || Hugh Mulcahy (9–16) || None || 9,801 || 40–87–1 |- style="background:#bfb" | 129 || September 9 || @ Bees || 2–1 || || Dick Errickson (4–7) || None || 1,454 || 41–87–1 |- style="background:#bbb" | – || September 10 || @ Bees || colspan=6 | Canceled (rain and cold weather); No makeup scheduled |- style="background:#fbb" | 130 || September 12 || @ Cardinals || 3–4 || Bob Bowman (12–5) || Ike Pearson (2–9) || None || 1,564 || 41–88–1 |- style="background:#fbb" | 131 || September 13 || @ Cardinals || 9–10 || Bill McGee (9–5) || Ike Pearson (2–10) || None || 1,428 || 41–89–1 |- style="background:#fbb" | 132 || September 14 || @ Cubs || 1–13 || Charlie Root (8–8) || Boom-Boom Beck (7–12) || None || || 41–90–1 |- style="background:#fbb" | 133 || September 14 || @ Cubs || 2–5 || Larry French (13–7) || Roy Bruner (0–1) || None || 5,004 || 41–91–1 |- style="background:#bfb" | 134 || September 15 || @ Cubs || 9–6 || Kirby Higbe (10–13) || Dizzy Dean (6–4) || Syl Johnson (2) || || 42–91–1 |- style="background:#fbb" | 135 || September 15 || @ Cubs || 1–6 || Vance Page (7–7) || Bill Kerksieck (0–2) || Claude Passeau (3) || 4,481 || 42–92–1 |- style="background:#fbb" | 136 || September 16 || @ Cubs || 2–8 || Bill Lee (18–13) || Ray Harrell (3–7) || None || 4,418 || 42–93–1 |- style="background:#bfb" | 137 || September 17 || @ Pirates || 7–3 || Syl Johnson (8–7) || Johnny Gee (0–1) || None || ||