| SP | McDowell, J.McDowell, Jack >> | 21 | 1987 | R | 67 | 31 | 31 | 10 | 10 | 4.34 | .323 | 1.42 | 9.7 | 3.1 | 5.5 | 191.0 | 206 | 96 | 92 | 23 | 66 | 116 | 2 | 0 | 0 | 2 | 17 | 2 | 0 | 4.42 |
| SP | Holton, T.Holton, Tyler >> | 28 | 2024 | L | 77 | 33 | 11 | 4 | 8 | 6.28 | .360 | 1.66 | 10.8 | 4.1 | 5.9 | 129.0 | 155 | 91 | 90 | 17 | 59 | 85 | 1 | 0 | 0 | 0 | 3 | 4 | 0 | 4.86 |
| SP | Valenzuela, F.Valenzuela, Fernando >> | 20 | 1980 | L | 88 | 29 | 29 | 12 | 10 | 4.10 | .306 | 1.31 | 7.5 | 4.3 | 6.7 | 193.1 | 161 | 91 | 88 | 23 | 93 | 144 | 4 | 0 | 0 | 1 | 16 | 2 | 0 | 4.53 |
| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 54 | 3 | 3 | 0 | 3 | 12.38 | .435 | 2.31 | 17.4 | 3.4 | 6.2 | 16.0 | 31 | 22 | 22 | 5 | 6 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6.81 |
| SP | Nelson, R.Nelson, Ryne >> | 24 | 2022 | R | 72 | 27 | 27 | 13 | 6 | 4.62 | .303 | 1.27 | 7.8 | 3.6 | 6.7 | 156.0 | 135 | 82 | 80 | 28 | 63 | 116 | 1 | 0 | 0 | 1 | 10 | 5 | 0 | 5.15 |
| SU | Feliz, N.Feliz, Neftali >> | 21 | 2009 | R | 82 | 75 | 0 | 2 | 1 | 3.94 | .320 | 1.39 | 8.2 | 4.4 | 9.2 | 98.1 | 89 | 47 | 43 | 15 | 48 | 100 | 0 | 2 | 5 | 0 | 0 | 2 | 0 | 4.48 |
| RP | Cordero, C.Cordero, Chad >> | 21 | 2003 | R | 90 | 58 | 0 | 4 | 6 | 5.46 | .333 | 1.41 | 6.9 | 5.8 | 10.3 | 56.0 | 43 | 34 | 34 | 3 | 36 | 64 | 0 | 21 | 5 | 0 | 0 | 5 | 3 | 3.61 |
| RP | Fairbanks, P.Fairbanks, Peter >> | 28 | 2022 | R | 74 | 54 | 0 | 6 | 2 | 2.59 | .280 | 1.13 | 8.3 | 2.0 | 9.3 | 55.2 | 51 | 19 | 16 | 9 | 12 | 57 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 3.82 |
| RP | Farrell, L.Farrell, Luke >> | 28 | 2019 | R | 72 | 41 | 0 | 1 | 0 | 3.21 | .308 | 1.29 | 8.8 | 2.8 | 8.6 | 42.0 | 41 | 15 | 15 | 3 | 13 | 40 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 3.10 |
| RP | Edwards, C.Edwards, Carl >> | 24 | 2016 | R | 61 | 39 | 0 | 1 | 0 | 5.67 | .360 | 1.61 | 8.3 | 6.5 | 11.1 | 39.2 | 36 | 28 | 25 | 4 | 28 | 48 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 4.26 |
| CL | Dayton, G.Dayton, Grant >> | 28 | 2016 | L | 54 | 76 | 0 | 4 | 8 | 3.89 | .272 | 1.12 | 6.8 | 3.3 | 11.1 | 74.0 | 56 | 34 | 32 | 9 | 27 | 91 | 0 | 10 | 4 | 0 | 0 | 0 | 0 | 3.22 |
| SP | Plesac, Z.Plesac, Zach >> | 25 | 2020 | R | 61 | 5 | 5 | 2 | 1 | 8.27 | .398 | 1.94 | 14.9 | 3.2 | 7.2 | 20.2 | 33 | 19 | 19 | 4 | 7 | 16 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 5.20 |