|| None || || 54–81–2 |- style="background:#fbb" | 138 || September 16 || @ Cardinals || 1–8 || Howie Krist (2–0) || Hal Kelleher (2–3) || None || 2,391 || 54–82–2 |- style="background:#fbb" | 139 || September 17 || @ Cubs || 2–10 || Larry French (14–10) || Wayne LaMaster (13–18) || None || 4,218 || 54–83–2 |- style="background:#fbb" | 140 || September 18 || @ Cubs || 3–9 || Tex Carleton (14–7) || Claude Passeau (12–17) || None || 6,635 || 54–84–2 |- style="background:#bfb" | 141 || || @ Pirates || 8–1 || Hugh Mulcahy (7–17) || Red Lucas (8–10) || None || || 55–84–2 |- style="background:#fbb" | 142 || September 19 || @ Pirates || 1–5 || Russ Bauers (11–6) || Hal Kelleher (2–4) || None || 6,137 || 55–85–2 |- style="background:#fbb" | 143 || September 21 || @ Reds || 3–6 || Ted Kleinhans (1–1) || Bucky Walters (14–14) || Jake Mooty (1) || || 55–86–2 |- style="background:#bfb" | 144 || September 21 || @ Reds || 10–1 || Wayne LaMaster (14–18) || Joe Cascarella (1–6) || None || 767 || 56–86–2 |- style="background:#bfb" | 145 || September 22 || @ Reds || 3–2 || Claude Passeau (13–17) || Al Hollingsworth (9–13) || None || 749 || 57–86–2 |- style="background:#bfb" | 146 || September 23 || @ Reds || 9–5 || Hugh Mulcahy (8–17) || Jake Mooty (0–3) || None || 583 || 58–86–2 |- style="background:#fbb" | 147 || September 25 || Bees || 1–2 || Lou Fette (18–9) || Bucky Walters (14–15) || None || 3,000 || 58–87–2 |- style="background:#fbb" | 148 || September 26 || Bees || 3–17 || Milt Shoffner (3–1) || Wayne LaMaster (14–19) || Guy Bush (1) || 4,000 || 58–88–2 |- style="background:#bfb" | 149 || September 27 || Dodgers || 11–3 || Claude Passeau (14–17) || Roy Henshaw (5–12) || None || 300 || 59–88–2 |- style="background:#bbb" | – || September 28 || Dodgers || colspan=6 | Canceled (rain); No makeup scheduled |- style="background:#fbb" | 150 || September 29 || Giants || 3–6 || Cliff Melton (20–9) || Hugh Mulcahy (8–18) || None || || 59–89–2 |- style="background:#bfb" | 151 || September 29 || Giants || 6–5 || Wayne LaMaster (15–19) || Harry Gumbert (10–11) || Claude Passeau (2) || 5,000 || 60–89–2 |- style="background:#fbb" | 152 || September 30 || Giants || 1–2 || Carl Hubbell (22–8) || Claude Passeau