| — | 40,199 | 45–77 | L2 |-style="background:#fbb;" | 123 | August 18 | @ Rockies | 6–7 | Estévez (2–2) | Brigham (2–2) | — | 38,181 | 45–78 | L3 |-style="background:#fbb;" | 124 | August 20 | @ Braves | 1–5 | Keuchel (4–5) | Kinley (1–1) | — | 21,271 | 45–79 | L4 |-style="background:#fbb;" | 125 | August 21 | @ Braves | 0–5 | Teherán (8–8) | Smith (8–7) | — | 23,537 | 45–80 | L5 |-style="background:#fbb;" | 126 | August 22 | @ Braves | 2–3 | Melancon (5–2) | Stanek (0–3) | — | 23,967 | 45–81 | L6 |-style="background:#bfb;" | 127 | August 23 | Phillies | 19–11 | Kinley (2–1) | Pivetta (4–6) | — | 9,065 | 46–81 | W1 |-style="background:#fbb;" | 128 | August 24 | Phillies | 3–9 | Eflin (8–11) | Yamamoto (4–5) | — | 12,981 | 46–82 | L1 |-style="background:#bfb;" | 129 | August 25 | Phillies | 3–2 | Hernández (3–5) | Nola (12–4) | Stanek (1) | 9,286 | 47–82 | W1 |-style="background:#fbb;" | 130 | August 26 | Reds | 3–6 | Gray (10–6) | López (5–6) | — | 5,297 | 47–83 | L1 |-style="background:#fbb;" | 131 | August 27 | Reds | 5–8 | Castillo (13–5) | Smith (8–8) | Iglesias (27) | 6,169 | 47–84 | L2 |-style="background:#fbb;" | 132 | August 28 | Reds | 0–5 | DeSclafani (9–7) | Alcántara (4–12) | — | 6,409 | 47–85 | L3 |-style="background:#bfb;" | 133 | August 29 | Reds | 4–3 | Kinley (3–1) | Iglesias (2–10) | — | 6,466 | 48–85 | W1 |-style="background:#fbb;" | 134 | August 30 | @ Nationals | 6–7 | Hudson (8–3) | Stanek (0–4) | — | 26,201 | 48–86 | L1 |-style="background:#fbb;" | 135 | August 31 | @ Nationals | 0–7 | Strasburg (16–5) | López (5–7) | — | 27,539 | 48–87 | L2 |- |-style="background:#fbb;" | 136 | September 1 | @ Nationals | 3–9 | Corbin (11–6) | Smith (8–9) | — | 29,345 | 48–88 | L3 |-style="background:#bfb;" | 137 | September 3 | @ Pirates | 5–4 | Conley (2–7) | Markel (0–1) | Ureña (1) | 9,169 | 49–88 | W1 |-style="background:#fbb;" | 138 | September 4 | @ Pirates | 5–6 | Wang (2–0) | Ureña (4–8) | — |