| RP | Miller, A.Miller, Andrew >> | 33 | 2018 | L | 49 | 70 | 0 | 2 | 0 | 1.44 | .215 | 0.82 | 4.3 | 3.1 | 11.7 | 50.0 | 24 | 10 | 8 | 2 | 17 | 65 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 1.94 |
| SP | Flaherty, J.Flaherty, Jack † >> | 22 | 2018 | R | 91 | 36 | 36 | 16 | 6 | 1.63 | .228 | 0.86 | 5.4 | 2.3 | 12.1 | 237.0 | 143 | 48 | 43 | 15 | 60 | 318 | 0 | 0 | 0 | 0 | 0 | 7 | 6 | 1.99 |
| RP | Mayers, M.Mayers, Mike >> | 26 | 2018 | R | 25 | 104 | 0 | 0 | 4 | 4.60 | .336 | 1.48 | 9.8 | 3.6 | 9.4 | 72.1 | 78 | 38 | 37 | 12 | 29 | 75 | 0 | 3 | 1 | 0 | 0 | 3 | 8 | 4.42 |
| RP | Tuivailala, S.Tuivailala, Sam >> | 25 | 2018 | R | 22 | 97 | 0 | 6 | 5 | 3.24 | .296 | 1.25 | 7.9 | 3.4 | 8.7 | 66.2 | 58 | 29 | 24 | 9 | 25 | 64 | 0 | 9 | 4 | 0 | 0 | 1 | 8 | 4.02 |
| RP | Hicks, J.Hicks, Jordan >> | 21 | 2018 | R | 55 | 61 | 0 | 3 | 4 | 4.46 | .310 | 1.35 | 7.9 | 4.3 | 8.6 | 42.1 | 37 | 24 | 21 | 1 | 20 | 40 | 0 | 8 | 3 | 0 | 0 | 0 | 3 | 2.83 |
| RP | Cecil, B.Cecil, Brett >> | 31 | 2018 | L | 4 | 100 | 0 | 2 | 1 | 2.70 | .317 | 1.39 | 8.4 | 4.3 | 6.8 | 46.2 | 43 | 14 | 14 | 3 | 22 | 35 | 0 | 4 | 2 | 0 | 0 | 0 | 3 | 3.76 |
| SP | Wacha, M.Wacha, Michael >> | 26 | 2018 | R | 71 | 31 | 31 | 11 | 9 | 2.79 | .267 | 1.05 | 6.4 | 3.1 | 8.7 | 209.1 | 148 | 70 | 65 | 12 | 71 | 201 | 1 | 0 | 0 | 1 | 0 | 10 | 4 | 2.99 |
| SP | Gant, J.Gant, John >> | 25 | 2018 | R | 64 | 31 | 31 | 11 | 9 | 3.16 | .285 | 1.16 | 6.8 | 3.7 | 8.3 | 165.1 | 125 | 62 | 58 | 25 | 67 | 152 | 0 | 0 | 0 | 0 | 0 | 6 | 7 | 4.45 |
| RP | Holland, G.Holland, Greg >> | 32 | 2018 | R | 29 | 52 | 0 | 2 | 2 | 3.25 | .328 | 1.47 | 8.2 | 5.1 | 10.2 | 44.1 | 40 | 18 | 16 | 7 | 25 | 50 | 0 | 10 | 3 | 0 | 0 | 0 | 0 | 4.50 |
| RP | Brebbia, J.Brebbia, John >> | 28 | 2018 | R | 69 | 31 | 0 | 1 | 1 | 2.54 | .254 | 0.99 | 6.1 | 2.9 | 11.3 | 28.1 | 19 | 8 | 8 | 1 | 9 | 35 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 2.04 |
| RP | Hudson, D.Hudson, Dakota >> | 23 | 2018 | R | 55 | 21 | 0 | 1 | 3 | 1.40 | .237 | 0.93 | 4.7 | 3.8 | 6.2 | 19.1 | 10 | 4 | 3 | 1 | 8 | 13 | 0 | 4 | 1 | 0 | 0 | 0 | 1 | 3.58 |
| SP | Wainwright, A.Wainwright, Adam >> | 37 | 2018 | R | 28 | 30 | 30 | 9 | 13 | 3.81 | .293 | 1.21 | 7.1 | 3.9 | 9.3 | 174.2 | 137 | 84 | 74 | 18 | 75 | 180 | 0 | 0 | 0 | 0 | 0 | 5 | 5 | 3.66 |
| SP | Mikolas, M.Mikolas, Miles >> | 29 | 2018 | R | 70 | 19 | 19 | 12 | 5 | 2.55 | .240 | 0.93 | 6.7 | 1.8 | 8.3 | 144.2 | 107 | 43 | 41 | 15 | 28 | 133 | 4 | 0 | 0 | 2 | 0 | 2 | 4 | 3.13 |
| RP | Poncedeleon, D.Poncedeleon, Daniel >> | 26 | 2018 | R | 76 | 17 | 0 | 1 | 2 | 1.80 | .250 | 1.00 | 7.8 | 1.2 | 7.2 | 15.0 | 13 | 4 | 3 | 0 | 2 | 12 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 1.80 |
| RP | Shreve, C.Shreve, Chasen >> | 27 | 2018 | L | 32 | 81 | 0 | 2 | 3 | 4.84 | .321 | 1.39 | 7.7 | 4.9 | 8.5 | 35.1 | 30 | 23 | 19 | 4 | 19 | 33 | 0 | 5 | 2 | 0 | 0 | 1 | 1 | 4.31 |
| RP | Gomber, A.Gomber, Austin >> | 24 | 2018 | L | 23 | 57 | 0 | 2 | 3 | 3.11 | .276 | 1.12 | 8.0 | 2.2 | 8.5 | 37.2 | 33 | 15 | 13 | 3 | 9 | 35 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | 2.97 |
| SP | Weaver, L.Weaver, Luke >> | 24 | 2018 | R | 19 | 6 | 6 | 1 | 5 | 12.27 | .450 | 2.41 | 18.4 | 3.3 | 10.6 | 22.0 | 45 | 31 | 30 | 3 | 8 | 26 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.64 |
| RP | Norris, B.Norris, Bud >> | 33 | 2018 | R | 57 | 16 | 0 | 0 | 0 | 1.10 | .300 | 1.22 | 6.8 | 4.5 | 12.4 | 16.1 | 12 | 3 | 2 | 1 | 8 | 22 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2.75 |