| SP | Foltynewicz, M.Foltynewicz, Michael # >> | 26 | 2018 | R | 95 | 30 | 30 | 8 | 7 | 3.68 | .292 | 1.20 | 7.7 | 3.2 | 10.8 | 185.2 | 158 | 76 | 76 | 19 | 65 | 222 | 1 | 0 | 0 | 1 | 18 | 7 | 4 | 3.10 |
| SP | Eovaldi, N.Eovaldi, Nathan >> | 28 | 2018 | R | 71 | 30 | 30 | 6 | 15 | 4.87 | .332 | 1.46 | 10.7 | 2.4 | 6.7 | 155.1 | 185 | 94 | 84 | 26 | 42 | 115 | 0 | 0 | 0 | 0 | 6 | 5 | 4 | 4.61 |
| SP | Freeland, K.Freeland, Kyle >> | 25 | 2018 | L | 60 | 29 | 29 | 13 | 13 | 3.98 | .323 | 1.39 | 9.1 | 3.4 | 8.0 | 183.0 | 186 | 83 | 81 | 16 | 69 | 162 | 1 | 0 | 0 | 0 | 15 | 7 | 2 | 3.61 |
| SP | Heaney, A.Heaney, Andrew >> | 27 | 2018 | L | 60 | 29 | 29 | 9 | 12 | 5.94 | .360 | 1.64 | 11.5 | 3.3 | 9.6 | 162.0 | 207 | 110 | 107 | 28 | 59 | 173 | 0 | 0 | 0 | 0 | 11 | 7 | 9 | 4.33 |
| SP | Bumgarner, M.Bumgarner, Madison >> | 28 | 2018 | L | 52 | 27 | 27 | 9 | 11 | 5.79 | .331 | 1.44 | 9.9 | 3.1 | 8.1 | 152.1 | 167 | 99 | 98 | 23 | 53 | 137 | 0 | 0 | 0 | 0 | 13 | 6 | 4 | 4.33 |
| RP | Dominguez, S.Dominguez, Seranthony >> | 23 | 2018 | R | 96 | 74 | 0 | 8 | 5 | 2.87 | .235 | 0.90 | 5.4 | 2.7 | 10.2 | 113.0 | 68 | 37 | 36 | 8 | 34 | 128 | 0 | 4 | 2 | 0 | 0 | 2 | 13 | 2.61 |
| RP | Hughes, J.Hughes, Jared >> | 32 | 2018 | R | 76 | 75 | 0 | 2 | 4 | 4.22 | .324 | 1.43 | 8.9 | 4.0 | 7.6 | 89.2 | 88 | 50 | 42 | 8 | 40 | 75 | 0 | 3 | 3 | 0 | 0 | 1 | 3 | 3.87 |
| RP | Soria, J.Soria, Joakim >> | 34 | 2018 | R | 61 | 78 | 0 | 5 | 5 | 4.33 | .335 | 1.45 | 9.4 | 3.7 | 10.0 | 87.1 | 91 | 43 | 42 | 12 | 36 | 97 | 0 | 8 | 4 | 0 | 0 | 5 | 3 | 3.98 |
| RP | Devenski, C.Devenski, Chris >> | 27 | 2018 | R | 53 | 57 | 0 | 2 | 2 | 2.70 | .261 | 1.06 | 7.1 | 2.4 | 9.6 | 70.0 | 55 | 21 | 21 | 5 | 19 | 75 | 0 | 9 | 3 | 0 | 0 | 0 | 0 | 2.60 |
| RP | Rivero, F.Rivero, Felipe # >> | 26 | 2018 | L | 45 | 39 | 0 | 2 | 2 | 5.71 | .339 | 1.49 | 9.4 | 4.0 | 11.4 | 41.0 | 43 | 26 | 26 | 7 | 18 | 52 | 0 | 4 | 1 | 0 | 0 | 2 | 0 | 4.15 |
| RP | Belisle, M.Belisle, Matt >> | 38 | 2018 | R | 1 | 29 | 0 | 0 | 1 | 7.75 | .340 | 1.54 | 10.4 | 3.8 | 7.6 | 33.2 | 38 | 31 | 29 | 9 | 14 | 28 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 6.12 |
| SP | Martinez, C.Martinez, Carlos >> | 27 | 2018 | R | 44 | 2 | 1 | 0 | 0 | 1.93 | .364 | 1.71 | 9.0 | 9.0 | 2.3 | 4.2 | 4 | 1 | 1 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.50 |
| SP | Bailey, H.Bailey, Homer >> | 32 | 2018 | R | 1 | 16 | 0 | 2 | 3 | 10.24 | .442 | 2.33 | 15.6 | 5.7 | 6.6 | 19.1 | 33 | 22 | 22 | 7 | 12 | 14 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 8.37 |