| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 92 | 24 | 24 | 6 | 12 | 3.52 | .306 | 1.31 | 8.6 | 3.3 | 7.7 | 168.2 | 160 | 75 | 66 | 14 | 61 | 143 | 4 | 0 | 0 | 1 | 17 | 2 | 4 | 3.51 |
| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 23 | 23 | 9 | 7 | 3.62 | .281 | 1.15 | 7.8 | 2.5 | 5.3 | 174.0 | 151 | 70 | 70 | 15 | 49 | 103 | 3 | 0 | 0 | 2 | 14 | 4 | 2 | 3.85 |
| SP | Gooden, D.Gooden, Dwight >> | 21 | 1985 | R | 68 | 23 | 23 | 8 | 10 | 4.65 | .327 | 1.42 | 9.0 | 3.8 | 5.1 | 155.0 | 155 | 84 | 80 | 17 | 65 | 87 | 0 | 0 | 0 | 0 | 11 | 6 | 5 | 4.68 |
| RP | Harvey, B.Harvey, Bryan >> | 28 | 1991 | R | 66 | 63 | 0 | 6 | 3 | 3.61 | .322 | 1.37 | 9.6 | 2.8 | 8.2 | 77.1 | 82 | 35 | 31 | 7 | 24 | 70 | 0 | 1 | 2 | 0 | 0 | 4 | 2 | 3.45 |
| RP | Percival, T.Percival, Troy >> | 26 | 1995 | R | 83 | 47 | 0 | 4 | 6 | 5.09 | .324 | 1.43 | 8.4 | 4.5 | 9.2 | 46.0 | 43 | 26 | 26 | 7 | 23 | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.43 |
| RP | Gregerson, L.Gregerson, Luke >> | 26 | 2010 | R | 73 | 36 | 0 | 2 | 1 | 6.81 | .395 | 1.93 | 13.9 | 3.9 | 9.3 | 35.2 | 54 | 27 | 27 | 3 | 15 | 36 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 3.43 |
| CL | Hader, J.Hader, Josh † >> | 24 | 2018 | L | 93 | 46 | 0 | 1 | 4 | 3.02 | .300 | 1.26 | 7.6 | 4.0 | 9.9 | 50.2 | 42 | 17 | 17 | 2 | 22 | 55 | 0 | 26 | 5 | 0 | 0 | 1 | 0 | 2.70 |
| SP | Bender, C.Bender, Chief >> | 26 | 1910 | R | 72 | 10 | 0 | 2 | 0 | 2.45 | .313 | 1.31 | 8.0 | 4.0 | 2.0 | 18.1 | 16 | 5 | 5 | 2 | 8 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 5.50 |