| SP | Flaherty, J.Flaherty, Jack >> | 22 | 2018 | R | 93 | 30 | 30 | 6 | 10 | 3.74 | .305 | 1.27 | 7.9 | 3.6 | 10.2 | 158.2 | 138 | 72 | 66 | 21 | 64 | 179 | 1 | 0 | 0 | 1 | 10 | 7 | 7 | 3.81 |
| SP | Strasburg, S.Strasburg, Stephen >> | 29 | 2018 | R | 67 | 29 | 29 | 10 | 10 | 4.96 | .315 | 1.33 | 8.9 | 3.1 | 10.9 | 154.1 | 153 | 90 | 85 | 33 | 53 | 186 | 0 | 0 | 0 | 0 | 14 | 7 | 0 | 4.54 |
| SP | Williams, T.Williams, Trevor # >> | 26 | 2018 | R | 66 | 29 | 29 | 8 | 10 | 4.91 | .326 | 1.41 | 10.2 | 2.6 | 6.8 | 148.1 | 167 | 82 | 81 | 31 | 42 | 111 | 0 | 0 | 0 | 0 | 11 | 6 | 2 | 5.20 |
| SP | LeBlanc, W.LeBlanc, Wade >> | 34 | 2018 | L | 61 | 29 | 29 | 6 | 8 | 4.86 | .337 | 1.51 | 10.3 | 3.3 | 6.9 | 139.0 | 159 | 81 | 75 | 20 | 51 | 106 | 0 | 0 | 0 | 0 | 4 | 2 | 1 | 4.49 |
| SP | Castillo, L.Castillo, Luis >> | 25 | 2018 | R | 58 | 29 | 28 | 6 | 14 | 6.86 | .380 | 1.80 | 12.3 | 4.1 | 9.3 | 124.2 | 169 | 101 | 95 | 32 | 56 | 128 | 0 | 0 | 0 | 0 | 7 | 4 | 1 | 5.74 |
| RP | Kimbrel, C.Kimbrel, Craig >> | 30 | 2018 | R | 94 | 78 | 0 | 3 | 5 | 3.69 | .315 | 1.33 | 6.8 | 5.2 | 12.0 | 102.1 | 77 | 43 | 42 | 16 | 59 | 136 | 0 | 0 | 5 | 0 | 0 | 5 | 11 | 4.25 |
| RP | Holder, J.Holder, Jonathan # >> | 25 | 2018 | R | 67 | 79 | 0 | 4 | 4 | 5.49 | .333 | 1.41 | 10.5 | 2.3 | 6.9 | 96.2 | 112 | 62 | 59 | 18 | 24 | 74 | 0 | 3 | 7 | 0 | 0 | 9 | 3 | 4.93 |
| RP | Jimenez, J.Jimenez, Joe >> | 23 | 2018 | R | 57 | 81 | 0 | 5 | 7 | 5.42 | .340 | 1.52 | 10.5 | 3.3 | 10.7 | 99.2 | 115 | 63 | 60 | 16 | 36 | 118 | 0 | 4 | 7 | 0 | 0 | 3 | 6 | 3.90 |
| RP | Barraclough, K.Barraclough, Kyle >> | 28 | 2018 | R | 47 | 75 | 0 | 7 | 5 | 3.69 | .310 | 1.34 | 7.5 | 4.5 | 9.2 | 95.0 | 79 | 43 | 39 | 16 | 48 | 97 | 0 | 3 | 2 | 0 | 0 | 1 | 3 | 4.69 |
| RP | Herrera, K.Herrera, Kelvin >> | 28 | 2018 | R | 38 | 72 | 0 | 4 | 4 | 4.42 | .295 | 1.22 | 8.6 | 2.3 | 7.4 | 77.1 | 74 | 39 | 38 | 17 | 20 | 63 | 0 | 13 | 3 | 0 | 0 | 3 | 0 | 5.13 |