| SP | Foltynewicz, M.Foltynewicz, Michael † >> | 26 | 2018 | R | 96 | 30 | 30 | 13 | 9 | 3.10 | .291 | 1.19 | 7.8 | 2.9 | 10.1 | 191.1 | 166 | 76 | 66 | 15 | 62 | 215 | 1 | 0 | 0 | 1 | 21 | 8 | 4 | 2.87 |
| SP | Hamels, C.Hamels, Cole # >> | 35 | 2018 | L | 65 | 30 | 30 | 6 | 15 | 5.40 | .338 | 1.49 | 10.2 | 3.3 | 9.4 | 166.2 | 188 | 113 | 100 | 29 | 61 | 173 | 0 | 0 | 0 | 0 | 12 | 6 | 2 | 4.40 |
| SP | Eflin, Z.Eflin, Zach # >> | 24 | 2018 | R | 48 | 29 | 29 | 8 | 18 | 6.31 | .370 | 1.74 | 12.5 | 3.2 | 9.1 | 142.2 | 197 | 109 | 100 | 22 | 51 | 144 | 0 | 0 | 0 | 0 | 8 | 3 | 8 | 4.13 |
| SP | Pivetta, N.Pivetta, Nick + >> | 25 | 2018 | R | 54 | 23 | 19 | 4 | 9 | 4.33 | .331 | 1.43 | 9.4 | 3.5 | 10.1 | 106.0 | 111 | 59 | 51 | 15 | 41 | 119 | 0 | 0 | 0 | 0 | 5 | 5 | 8 | 3.90 |
| CL | Dominguez, S.Dominguez, Seranthony + >> | 23 | 2018 | R | 98 | 51 | 0 | 1 | 7 | 3.62 | .317 | 1.29 | 7.0 | 4.8 | 11.2 | 49.2 | 38 | 21 | 20 | 5 | 26 | 61 | 0 | 28 | 4 | 0 | 0 | 5 | 11 | 3.73 |
| RP | Neris, H.Neris, Hector >> | 29 | 2018 | R | 57 | 74 | 0 | 2 | 2 | 3.65 | .297 | 1.26 | 7.9 | 3.4 | 10.9 | 74.0 | 65 | 33 | 30 | 6 | 28 | 90 | 0 | 1 | 3 | 0 | 0 | 1 | 4 | 2.80 |
| RP | Montgomery, M.Montgomery, Mike >> | 28 | 2018 | L | 37 | 66 | 0 | 0 | 2 | 1.81 | .248 | 0.96 | 6.7 | 2.1 | 8.0 | 74.2 | 55 | 15 | 15 | 7 | 17 | 66 | 0 | 1 | 1 | 0 | 0 | 2 | 1 | 3.22 |
| RP | Lorenzen, M.Lorenzen, Michael >> | 26 | 2018 | R | 42 | 63 | 0 | 6 | 0 | 3.30 | .296 | 1.24 | 7.1 | 4.1 | 7.7 | 106.1 | 84 | 40 | 39 | 12 | 48 | 91 | 0 | 3 | 0 | 0 | 0 | 2 | 1 | 4.17 |
| RP | Garcia, L.Garcia, Luis >> | 31 | 2018 | R | 37 | 42 | 0 | 3 | 5 | 3.92 | .326 | 1.40 | 7.9 | 4.8 | 12.3 | 41.1 | 36 | 21 | 18 | 5 | 22 | 56 | 0 | 0 | 1 | 0 | 0 | 2 | 2 | 3.61 |
| RP | Leiter, M.Leiter, Mark >> | 27 | 2018 | R | 4 | 42 | 0 | 1 | 0 | 2.78 | .304 | 1.29 | 8.0 | 3.6 | 9.0 | 55.0 | 49 | 18 | 17 | 6 | 22 | 55 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.67 |