| SP | James, J.James, Josh + >> | 25 | 2018 | R | 100 | 31 | 31 | 14 | 4 | 2.95 | .285 | 1.18 | 7.2 | 3.5 | 10.2 | 152.2 | 121 | 50 | 50 | 18 | 59 | 172 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 3.50 |
| SP | McCullers, L.McCullers, Lance # >> | 25 | 2018 | R | 90 | 29 | 29 | 12 | 7 | 3.57 | .279 | 1.13 | 6.7 | 3.5 | 10.2 | 161.1 | 119 | 64 | 64 | 15 | 63 | 183 | 0 | 0 | 0 | 0 | 13 | 5 | 5 | 3.20 |
| SP | Valdez, F.Valdez, Framber + >> | 24 | 2018 | L | 82 | 26 | 26 | 8 | 7 | 4.54 | .324 | 1.38 | 7.6 | 4.8 | 8.1 | 125.0 | 105 | 68 | 63 | 17 | 67 | 113 | 0 | 0 | 0 | 0 | 1 | 8 | 11 | 4.76 |
| SP | Arrieta, J.Arrieta, Jake # >> | 32 | 2018 | R | 53 | 23 | 20 | 9 | 6 | 4.44 | .334 | 1.46 | 10.4 | 2.8 | 7.7 | 115.2 | 133 | 61 | 57 | 16 | 36 | 98 | 0 | 2 | 0 | 0 | 11 | 5 | 3 | 4.17 |
| RP | Fields, J.Fields, Josh >> | 32 | 2018 | R | 90 | 82 | 0 | 7 | 1 | 2.62 | .237 | 0.89 | 5.8 | 2.3 | 8.9 | 103.0 | 66 | 30 | 30 | 12 | 26 | 102 | 0 | 0 | 1 | 0 | 0 | 4 | 0 | 3.41 |
| RP | Peacock, B.Peacock, Brad # >> | 30 | 2018 | R | 79 | 85 | 0 | 3 | 3 | 3.81 | .306 | 1.29 | 8.4 | 3.2 | 11.2 | 78.0 | 73 | 37 | 33 | 12 | 28 | 97 | 0 | 7 | 5 | 0 | 0 | 2 | 3 | 3.67 |
| RP | Devenski, C.Devenski, Chris >> | 27 | 2018 | R | 72 | 65 | 0 | 3 | 7 | 4.45 | .290 | 1.17 | 8.3 | 2.3 | 8.5 | 54.2 | 50 | 27 | 27 | 7 | 14 | 51 | 0 | 7 | 2 | 0 | 0 | 3 | 1 | 3.74 |
| RP | Casilla, S.Casilla, Santiago >> | 38 | 2018 | R | 76 | 36 | 0 | 6 | 3 | 2.38 | .266 | 1.06 | 5.0 | 4.5 | 8.5 | 34.0 | 19 | 9 | 9 | 2 | 17 | 32 | 0 | 9 | 1 | 0 | 0 | 1 | 3 | 3.47 |
| RP | Cedeno, X.Cedeno, Xavier >> | 31 | 2018 | L | 70 | 104 | 0 | 1 | 3 | 4.30 | .315 | 1.38 | 8.7 | 3.9 | 8.5 | 58.2 | 56 | 29 | 28 | 8 | 25 | 55 | 0 | 0 | 4 | 0 | 0 | 0 | 4 | 4.19 |
| SP | Musgrove, J.Musgrove, Joseph >> | 25 | 2018 | R | 65 | 27 | 0 | 3 | 3 | 3.80 | .280 | 1.14 | 7.6 | 2.7 | 9.7 | 90.0 | 76 | 38 | 38 | 10 | 27 | 97 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 3.26 |