| SP | Strider, S.Strider, Spencer >> | 24 | 2023 | R | 95 | 6 | 6 | 3 | 2 | 2.67 | .318 | 1.37 | 10.1 | 2.5 | 12.5 | 33.2 | 37 | 11 | 10 | 1 | 9 | 46 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 1.52 |
| SP | Wacha, M.Wacha, Michael >> | 31 | 2023 | R | 70 | 5 | 5 | 1 | 2 | 5.09 | .349 | 1.57 | 9.8 | 4.3 | 6.3 | 23.0 | 25 | 13 | 13 | 4 | 11 | 16 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 5.43 |
| SP | Steele, J.Steele, Justin >> | 27 | 2023 | L | 59 | 6 | 6 | 3 | 2 | 3.25 | .275 | 1.03 | 7.5 | 1.8 | 9.5 | 36.0 | 30 | 13 | 13 | 6 | 7 | 38 | 0 | 0 | 0 | 0 | 4 | 4 | 1 | 3.97 |
| SP | Walker, T.Walker, Taijuan >> | 30 | 2023 | R | 48 | 5 | 5 | 4 | 0 | 3.03 | .315 | 1.28 | 8.7 | 3.1 | 9.3 | 29.2 | 28 | 10 | 10 | 2 | 10 | 30 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 3.17 |
| RP | Kimbrel, C.Kimbrel, Craig >> | 35 | 2023 | R | 95 | 15 | 0 | 1 | 0 | 2.57 | .276 | 1.14 | 8.1 | 2.1 | 14.6 | 21.0 | 19 | 6 | 6 | 2 | 5 | 34 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 1.71 |
| RP | Pressly, R.Pressly, Ryan >> | 34 | 2023 | R | 74 | 14 | 0 | 2 | 0 | 3.26 | .237 | 0.93 | 7.1 | 1.4 | 13.7 | 19.1 | 15 | 7 | 7 | 2 | 3 | 29 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1.79 |
| RP | Holmes, C.Holmes, Clay >> | 30 | 2023 | R | 61 | 14 | 0 | 1 | 0 | 4.86 | .296 | 1.26 | 7.9 | 3.9 | 10.7 | 16.2 | 14 | 9 | 9 | 4 | 7 | 19 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 5.19 |
| RP | Alexander, T.Alexander, Tyler >> | 28 | 2023 | L | 51 | 12 | 0 | 1 | 2 | 3.14 | .338 | 1.53 | 11.6 | 2.6 | 10.3 | 14.1 | 18 | 5 | 5 | 2 | 4 | 16 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3.43 |
| RP | Clase, E.Clase, Emmanuel >> | 25 | 2023 | R | 43 | 9 | 0 | 0 | 0 | 0.90 | .250 | 0.90 | 6.3 | 1.8 | 9.0 | 10.0 | 7 | 1 | 1 | 0 | 2 | 10 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1.90 |
| SP | Morton, C.Morton, Charlie >> | 40 | 2023 | R | 38 | 2 | 0 | 0 | 0 | 0.00 | .143 | 0.50 | 0.0 | 4.5 | 9.0 | 2.0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2.50 |