| SP | Hellickson, J.Hellickson, Jeremy >> | 31 | 2018 | R | 86 | 29 | 29 | 13 | 5 | 2.96 | .290 | 1.21 | 8.4 | 2.5 | 7.6 | 152.0 | 142 | 57 | 50 | 14 | 42 | 129 | 1 | 0 | 0 | 1 | 7 | 2 | 4 | 3.37 |
| SP | Chirinos, Y.Chirinos, Yonny # + >> | 24 | 2018 | R | 64 | 30 | 29 | 2 | 10 | 5.18 | .329 | 1.44 | 10.0 | 3.0 | 8.6 | 114.2 | 127 | 69 | 66 | 17 | 38 | 109 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 4.13 |
| SP | Yarbrough, R.Yarbrough, Ryan + >> | 26 | 2018 | L | 55 | 29 | 28 | 1 | 5 | 3.32 | .326 | 1.43 | 10.5 | 2.4 | 7.3 | 105.2 | 123 | 42 | 39 | 8 | 28 | 85 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3.23 |
| SP | Odorizzi, J.Odorizzi, Jake >> | 28 | 2018 | R | 52 | 26 | 19 | 2 | 7 | 4.71 | .331 | 1.44 | 9.0 | 4.1 | 8.7 | 80.1 | 80 | 43 | 42 | 11 | 36 | 77 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 4.33 |
| CL | Castillo, D.Castillo, Diego † + >> | 24 | 2018 | R | 96 | 77 | 0 | 6 | 4 | 2.96 | .275 | 1.11 | 6.8 | 3.2 | 9.5 | 97.1 | 73 | 33 | 32 | 6 | 35 | 102 | 0 | 20 | 2 | 0 | 0 | 3 | 7 | 2.88 |
| RP | Stanek, R.Stanek, Ryne # + >> | 26 | 2018 | R | 91 | 80 | 0 | 7 | 8 | 4.03 | .294 | 1.20 | 5.8 | 5.0 | 9.7 | 96.0 | 62 | 43 | 43 | 6 | 53 | 103 | 0 | 4 | 3 | 0 | 0 | 5 | 5 | 3.48 |
| RP | Alvarado, J.Alvarado, Jose >> | 23 | 2018 | L | 90 | 99 | 0 | 4 | 1 | 3.32 | .307 | 1.32 | 7.6 | 4.3 | 12.1 | 86.2 | 73 | 34 | 32 | 9 | 41 | 116 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 3.13 |
| RP | Schultz, J.Schultz, Jaime † + >> | 27 | 2018 | R | 87 | 75 | 0 | 8 | 2 | 1.16 | .273 | 1.08 | 5.7 | 4.0 | 9.2 | 101.0 | 64 | 13 | 13 | 4 | 45 | 103 | 0 | 5 | 7 | 0 | 0 | 5 | 4 | 2.96 |
| RP | Holder, J.Holder, Jonathan + >> | 25 | 2018 | R | 81 | 60 | 0 | 6 | 4 | 4.16 | .316 | 1.32 | 8.4 | 3.6 | 7.3 | 62.2 | 58 | 29 | 29 | 12 | 25 | 50 | 0 | 5 | 2 | 0 | 0 | 4 | 1 | 5.31 |
| RP | Colome, A.Colome, Alex # >> | 29 | 2018 | R | 73 | 48 | 0 | 2 | 7 | 5.33 | .324 | 1.36 | 8.8 | 3.6 | 9.5 | 50.2 | 49 | 30 | 30 | 5 | 20 | 53 | 0 | 2 | 3 | 0 | 0 | 4 | 7 | 3.62 |