| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2026 proj | 11 | 8 | 0 | 0 | 164.0 | 154 | 36 | 160 | 66 | 3.62 | 1.159 | 47.5 |
| 2025 | 7 | 4 | 0 | 0 | 110.7 | 89 | 18 | 108 | 38 | 3.09 | 0.967 | 52.5 |
| 2024 | 8 | 7 | 0 | 0 | 123.7 | 106 | 23 | 127 | 46 | 3.35 | 1.043 | 51.8 |
| Date | News |
| 2/11/26 | Braves' Schwellenbach will start season on IL. Braves right-hander Spencer Schwellenbach is expected to miss significant time because of inflammation in his pitching elbow. Source: https://www.espn.com/mlb/story/_/id/47888840/brave... |
| 2/10/26 | Braves' Schwellenbach will start season on IL. Braves right-hander Spencer Schwellenbach is expected to miss significant time because of inflammation in his pitching elbow. Source: https://www.espn.com/mlb/story/_/id/47888840/brave... |
| 8/23/25 | Braves pitcher gets pivotal update as season winds down. Atlanta Braves pitcher Spencer Schwellenbach is dealing with an elbow injury, however, the 25-year-old right-handed hurler is still hoping to take important steps forward before the season ends. Schwellenbach may not be expected to return to game-action with the Braves in 2025, but he is hoping to throw live batting practice before the offseason, according to Grant McAuley of 92.9 The Game. “#Braves Spencer Schwellenbach told me he's been throwing for 2 weeks. Source: https://clutchpoints.com/mlb/atlanta-braves/braves... |
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