|| 5–6 (8) || Bob Malloy (1–0) || Deacon Donahue (0–2) || None || 1,212 || 13–10–1 |- style="background:#bfb" | 25 || May 18 || @ Reds || 2–0 || Ken Raffensberger (4–1) || Bucky Walters (5–2) || None || 10,253 || 14–10–1 |- style="background:#fbb" | 26 || May 19 || @ Reds || 5–7 || Clyde Shoun (3–1) || Dick Barrett (1–6) || None || 1,450 || 14–11–1 |- style="background:#fbb" | 27 || May 20 || @ Pirates || 3–4 || Nick Strincevich (4–0) || Al Gerheauser (2–2) || None || 4,096 || 14–12–1 |- style="background:#fbb" | 28 || May 21 (1) || @ Pirates || 3–4 || Max Butcher (3–2) || Charley Schanz (4–2) || None || see 2nd game || 14–13–1 |- style="background:#bfb" | 29 || May 21 (2) || @ Pirates || 9–4 || Dick Barrett (2–6) || Xavier Rescigno (1–4) || None || 23,009 || 15–13–1 |- style="background:#fbb" | 30 || May 24 || Cubs || 0–2 || Paul Erickson (1–0) || Ken Raffensberger (4–2) || None || 9,945 || 15–14–1 |- style="background:#bbb" | – || May 25 || Cubs || colspan=6 | Postponed (rain); Makeup: August 1 as a traditional double-header |- style="background:#fbb" | 31 || May 26 || Cubs || 1–9 || Paul Derringer (2–5) || Al Gerheauser (2–3) || None || 2,763 || 15–15–1 |- style="background:#bbb" | – || May 27 || Pirates || colspan=6 | Postponed (rain); Makeup: July 20 as a traditional double-header |- style="background:#fbb" | 32 || May 28 (1) || Pirates || 0–4 || Rip Sewell (6–2) || Charley Schanz (4–3) || None || see 2nd game || 15–16–1 |- style="background:#bfb" | 33 || May 28 (2) || Pirates || 8–2 || Dick Barrett (3–6) || Nick Strincevich (4–2) || None || 22,773 || 16–16–1 |- style="background:#fbb" | 34 || May 29 || Pirates || 2–3 (11) || Xavier Rescigno (3–4) || Ken Raffensberger (4–3) || None || 14,438 || 16–17–1 |- style="background:#fbb" | 35 || May 30 (1) || Reds || 3–4 || Arnold Carter (1–0) || Bill Lee (2–1) || Ed Heusser (1) || see 2nd game || 16–18–1 |- style="background:#fbb" | 36 || May 30 (2) || Reds || 4–7 || Clyde Shoun (4–1) || Al Gerheauser (2–4) || None || 21,556 || 16–19–1 |- style="background:#bfb" | 37 || May 31 || Reds || 5–4 || Charley Schanz (5–3) || Bob Ferguson (0–3) || None