|| Robin Roberts (14–15) || Mike McCormick (11–14) || None || 22,222 || 60–82–1 |- style="background:#fbb" | 144 || September 12 || @ Giants || 1–9 || Sam Jones (20–12) || Humberto Robinson (2–4) || None || 21,133 || 60–83–1 |- style="background:#fbb" | 145 || September 13 || @ Giants || 0–1 || Jack Sanford (14–12) || Don Cardwell (9–9) || Mike McCormick (4) || 21,841 || 60–84–1 |- style="background:#fbb" | 146 || September 15 || @ Cardinals || 4–6 || Ernie Broglio (7–12) || Ed Keegan (0–3) || None || 5,327 || 60–85–1 |- style="background:#bfb" | 147 || September 17 || @ Cubs || 5–2 || Robin Roberts (15–15) || Glen Hobbie (15–13) || None || 598 || 61–85–1 |- style="background:#fbb" | 148 || September 18 || @ Cubs || 4–5 || Dave Hillman (7–11) || Bob Bowman (0–1) || None || 971 || 61–86–1 |- style="background:#fbb" | 149 || September 19 || Braves || 3–9 || Bob Buhl (14–9) || Don Cardwell (9–10) || None || 17,216 || 61–87–1 |- style="background:#fbb" | 150 || September 20 || Braves || 5–8 || Joey Jay (6–10) || Robin Roberts (15–16) || None || 13,202 || 61–88–1 |- style="background:#bfb" | 151 || September 22 || Reds || 3–1 || Jim Owens (12–11) || Orlando Peña (5–9) || None || || 62–88–1 |- style="background:#bfb" | 152 || September 22 || Reds || 3–2 || Humberto Robinson (3–4) || Bob Purkey (12–18) || Jack Meyer (1) || 8,533 || 63–88–1 |- style="background:#bfb" | 153 || September 25 || @ Braves || 6–3 || Jack Meyer (5–3) || Lew Burdette (21–15) || None || 24,912 || 64–88–1 |- style="background:#fbb" | 154 || September 26 || @ Braves || 2–3 || Warren Spahn (21–15) || Robin Roberts (15–17) || None || 23,763 || 64–89–1 |- style="background:#fbb" | 155 || September 27 || @ Braves || 2–5 || Bob Buhl (15–9) || Jim Owens (12–12) || Don McMahon (15) || 48,642 || 64–90–1 |- | style="font-size:88%" | The second game on April 26 was protested by the Pirates in the top of the first inning. The protest was later denied. The second game on May 10 was suspended (Sunday curfew) in the bottom of the eighth inning with the score 4–6 and was completed July 21, 1959. |- | Source: Roster Player stats Batting Starters by position Note: Pos = Position; G = Games played; AB