| SP | Kershaw, C.Kershaw, Clayton † >> | 30 | 2018 | L | 88 | 32 | 32 | 12 | 9 | 4.20 | .309 | 1.31 | 8.8 | 3.0 | 8.7 | 203.2 | 198 | 102 | 95 | 24 | 68 | 196 | 0 | 0 | 0 | 0 | 19 | 7 | 12 | 3.71 |
| SP | Hellickson, J.Hellickson, Jeremy # >> | 31 | 2018 | R | 80 | 31 | 31 | 4 | 11 | 5.12 | .339 | 1.51 | 10.5 | 3.2 | 7.0 | 154.2 | 180 | 96 | 88 | 31 | 54 | 119 | 0 | 0 | 0 | 0 | 5 | 4 | 2 | 5.20 |
| SP | Taillon, J.Taillon, Jameson # >> | 26 | 2018 | R | 65 | 29 | 29 | 15 | 10 | 4.87 | .314 | 1.34 | 9.5 | 2.6 | 7.8 | 172.0 | 182 | 96 | 93 | 29 | 49 | 149 | 0 | 0 | 0 | 0 | 12 | 5 | 2 | 4.40 |
| RP | Dominguez, S.Dominguez, Seranthony >> | 23 | 2018 | R | 96 | 80 | 0 | 2 | 4 | 3.62 | .299 | 1.25 | 6.7 | 4.6 | 11.9 | 112.0 | 83 | 47 | 45 | 10 | 57 | 148 | 0 | 2 | 3 | 0 | 0 | 3 | 12 | 3.13 |
| RP | Oberg, S.Oberg, Scott † >> | 28 | 2018 | R | 81 | 83 | 0 | 10 | 4 | 2.83 | .266 | 1.08 | 8.1 | 1.7 | 8.3 | 114.1 | 102 | 41 | 36 | 12 | 21 | 105 | 0 | 6 | 4 | 0 | 0 | 1 | 2 | 3.11 |
| RP | Miller, J.Miller, Justin >> | 31 | 2018 | R | 67 | 79 | 0 | 4 | 8 | 5.42 | .316 | 1.34 | 8.2 | 3.9 | 10.9 | 93.0 | 85 | 56 | 56 | 19 | 40 | 113 | 0 | 8 | 9 | 0 | 0 | 4 | 0 | 4.65 |
| RP | Jimenez, J.Jimenez, Joe >> | 23 | 2018 | R | 57 | 70 | 0 | 0 | 3 | 4.74 | .331 | 1.49 | 9.7 | 3.6 | 11.2 | 74.0 | 80 | 39 | 39 | 13 | 30 | 92 | 0 | 9 | 2 | 0 | 0 | 0 | 6 | 4.01 |
| RP | Pagan, E.Pagan, Emilio >> | 27 | 2018 | R | 49 | 56 | 0 | 1 | 5 | 3.56 | .303 | 1.30 | 8.4 | 3.5 | 11.1 | 60.2 | 56 | 24 | 24 | 8 | 23 | 74 | 0 | 7 | 3 | 0 | 0 | 0 | 2 | 3.42 |
| SP | Newcomb, S.Newcomb, Sean >> | 25 | 2018 | L | 48 | 29 | 0 | 5 | 2 | 6.55 | .386 | 1.89 | 11.0 | 5.9 | 7.4 | 44.0 | 54 | 32 | 32 | 10 | 29 | 36 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 6.30 |