| SP | Cueto, J.Cueto, Johnny # >> | 32 | 2018 | R | 81 | 32 | 32 | 6 | 15 | 5.05 | .310 | 1.31 | 9.0 | 2.8 | 8.8 | 194.1 | 193 | 120 | 109 | 30 | 61 | 189 | 0 | 0 | 0 | 0 | 14 | 8 | 6 | 4.13 |
| SP | Mikolas, M.Mikolas, Miles >> | 29 | 2018 | R | 80 | 30 | 30 | 8 | 13 | 4.76 | .317 | 1.35 | 10.1 | 2.1 | 7.9 | 187.0 | 210 | 111 | 99 | 31 | 43 | 165 | 0 | 0 | 0 | 0 | 16 | 7 | 1 | 4.19 |
| SP | Hardy, B.Hardy, Blaine >> | 31 | 2018 | L | 74 | 30 | 30 | 5 | 11 | 3.29 | .314 | 1.34 | 8.7 | 3.4 | 7.7 | 150.1 | 145 | 55 | 55 | 13 | 56 | 128 | 0 | 0 | 0 | 0 | 7 | 5 | 2 | 3.64 |
| SP | Castillo, L.Castillo, Luis >> | 25 | 2018 | R | 70 | 29 | 29 | 9 | 9 | 4.28 | .339 | 1.49 | 9.7 | 3.7 | 9.8 | 162.0 | 175 | 86 | 77 | 25 | 66 | 177 | 0 | 0 | 0 | 0 | 10 | 8 | 4 | 4.19 |
| SP | Leake, M.Leake, Mike # >> | 30 | 2018 | R | 35 | 20 | 19 | 2 | 10 | 5.72 | .346 | 1.56 | 11.4 | 2.7 | 8.1 | 116.1 | 147 | 78 | 74 | 20 | 35 | 104 | 0 | 0 | 0 | 0 | 7 | 3 | 5 | 4.43 |
| CL | Chapman, A.Chapman, Aroldis >> | 30 | 2018 | L | 96 | 43 | 0 | 5 | 10 | 3.20 | .322 | 1.40 | 8.0 | 4.6 | 12.8 | 45.0 | 40 | 19 | 16 | 5 | 23 | 64 | 0 | 17 | 2 | 0 | 0 | 1 | 4 | 3.20 |
| RP | Kelley, S.Kelley, Shawn >> | 34 | 2018 | R | 95 | 93 | 0 | 5 | 3 | 3.71 | .278 | 1.13 | 7.3 | 2.9 | 9.7 | 97.0 | 79 | 43 | 40 | 9 | 31 | 105 | 0 | 3 | 1 | 0 | 0 | 2 | 2 | 3.06 |
| RP | Iglesias, R.Iglesias, Raisel >> | 28 | 2018 | R | 89 | 51 | 0 | 2 | 5 | 4.11 | .317 | 1.39 | 8.5 | 4.1 | 11.3 | 50.1 | 47 | 25 | 23 | 7 | 23 | 63 | 0 | 3 | 2 | 0 | 0 | 0 | 4 | 3.68 |
| RP | Cingrani, T.Cingrani, Tony >> | 28 | 2018 | L | 81 | 93 | 0 | 2 | 1 | 3.24 | .268 | 1.08 | 7.4 | 2.3 | 11.0 | 50.0 | 41 | 23 | 18 | 8 | 13 | 61 | 0 | 0 | 3 | 0 | 0 | 1 | 5 | 3.48 |
| RP | Martin, C.Martin, Chris + >> | 32 | 2018 | R | 49 | 32 | 0 | 2 | 4 | 5.28 | .324 | 1.43 | 11.7 | 1.5 | 7.5 | 30.2 | 39 | 21 | 18 | 9 | 5 | 25 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 5.73 |
| RP | Pruitt, A.Pruitt, Austin + >> | 28 | 2018 | R | 44 | 15 | 0 | 0 | 0 | 4.75 | .326 | 1.38 | 10.5 | 2.1 | 6.9 | 30.1 | 35 | 17 | 16 | 4 | 7 | 23 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 4.10 |