| SP | Chamberlain, E.Chamberlain, Elton >> | 21 | 1888 | R | 97 | 11 | 11 | 8 | 1 | 4.35 | .303 | 1.25 | 7.0 | 4.4 | 4.5 | 80.2 | 62 | 42 | 39 | 8 | 39 | 40 | 6 | 0 | 0 | 1 | 4 | 4 | 0 | 4.91 |
| SP | Flaherty, J.Flaherty, Jack >> | 23 | 2019 | R | 87 | 11 | 11 | 5 | 2 | 4.94 | .309 | 1.31 | 9.1 | 2.6 | 9.3 | 62.0 | 63 | 35 | 34 | 10 | 18 | 64 | 0 | 0 | 0 | 0 | 5 | 2 | 1 | 4.00 |
| SP | O'Neill, M.O'Neill, Mike >> | 24 | 1901 | R | 83 | 11 | 11 | 0 | 0 | 3.41 | .287 | 1.10 | 7.8 | 2.2 | 5.9 | 29.0 | 25 | 12 | 11 | 1 | 7 | 19 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3.17 |
| SP | Pollet, H.Pollet, Howie >> | 22 | 1943 | L | 80 | 11 | 11 | 9 | 0 | 3.31 | .279 | 1.14 | 6.8 | 3.6 | 5.6 | 81.2 | 61 | 30 | 30 | 6 | 32 | 50 | 3 | 0 | 0 | 2 | 7 | 2 | 4 | 3.99 |
| SP | Haddix, H.Haddix, Harvey >> | 27 | 1952 | L | 78 | 10 | 10 | 0 | 3 | 7.54 | .382 | 1.85 | 12.3 | 4.9 | 4.5 | 22.2 | 30 | 19 | 19 | 6 | 12 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7.18 |
| RP | Helsley, R.Helsley, Ryan >> | 27 | 2022 | R | 99 | 24 | 0 | 5 | 0 | 1.40 | .216 | 0.83 | 4.5 | 3.1 | 9.5 | 38.2 | 19 | 6 | 6 | 2 | 13 | 40 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 2.61 |
| RP | Siegrist, K.Siegrist, Kevin >> | 23 | 2013 | L | 84 | 21 | 0 | 2 | 0 | 2.67 | .272 | 1.12 | 5.4 | 4.8 | 8.1 | 30.1 | 18 | 11 | 9 | 1 | 16 | 27 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3.23 |
| RP | Sanchez, E.Sanchez, Eduardo >> | 22 | 2011 | R | 74 | 18 | 0 | 2 | 1 | 2.45 | .305 | 1.32 | 6.1 | 5.7 | 6.5 | 22.0 | 15 | 10 | 6 | 2 | 14 | 16 | 0 | 3 | 0 | 0 | 0 | 0 | 2 | 4.64 |
| RP | Svanson, M.Svanson, Matt >> | 26 | 2025 | R | 78 | 12 | 0 | 2 | 1 | 4.34 | .333 | 1.50 | 8.5 | 5.5 | 7.0 | 18.2 | 17 | 9 | 9 | 0 | 11 | 14 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 3.28 |
| RP | Calero, K.Calero, Kiko >> | 29 | 2004 | R | 79 | 9 | 0 | 0 | 0 | 3.97 | .333 | 1.50 | 12.3 | 1.6 | 6.5 | 11.1 | 15 | 5 | 5 | 0 | 2 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.09 |
| RP | Thompson, Z.Thompson, Zack >> | 24 | 2022 | L | 56 | 14 | 0 | 0 | 1 | 4.96 | .329 | 1.47 | 8.4 | 5.1 | 6.2 | 16.1 | 15 | 9 | 9 | 2 | 9 | 11 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 4.94 |
| SP | Hudson, D.Hudson, Dakota >> | 25 | 2020 | R | 84 | 21 | 0 | 11 | 1 | 2.43 | .268 | 1.10 | 6.5 | 3.4 | 5.9 | 55.2 | 40 | 16 | 15 | 1 | 21 | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.07 |