| SP | Toussaint, T.Toussaint, Touki † + >> | 22 | 2018 | R | 70 | 31 | 31 | 16 | 3 | 2.08 | .272 | 1.09 | 5.5 | 4.3 | 9.5 | 160.0 | 97 | 41 | 37 | 7 | 77 | 169 | 0 | 0 | 0 | 0 | 6 | 5 | 1 | 2.99 |
| SP | Teheran, J.Teheran, Julio >> | 27 | 2018 | R | 89 | 30 | 30 | 14 | 6 | 2.95 | .301 | 1.25 | 7.0 | 4.3 | 7.4 | 180.0 | 139 | 62 | 59 | 10 | 86 | 147 | 0 | 0 | 0 | 0 | 16 | 7 | 4 | 3.64 |
| SP | Morton, C.Morton, Charlie † >> | 35 | 2018 | R | 92 | 30 | 30 | 14 | 8 | 3.69 | .294 | 1.22 | 7.5 | 3.6 | 10.1 | 180.2 | 149 | 77 | 74 | 19 | 72 | 202 | 0 | 0 | 0 | 0 | 15 | 5 | 1 | 3.41 |
| SP | Newcomb, S.Newcomb, Sean # >> | 25 | 2018 | L | 61 | 20 | 20 | 7 | 5 | 3.14 | .301 | 1.26 | 7.7 | 3.6 | 7.6 | 114.2 | 98 | 44 | 40 | 9 | 46 | 96 | 0 | 0 | 0 | 0 | 7 | 4 | 1 | 3.66 |
| CL | Kimbrel, C.Kimbrel, Craig >> | 30 | 2018 | R | 98 | 57 | 0 | 3 | 4 | 2.93 | .259 | 0.98 | 5.1 | 3.7 | 11.2 | 83.0 | 47 | 27 | 27 | 8 | 34 | 103 | 0 | 19 | 7 | 0 | 0 | 6 | 3 | 3.22 |
| RP | Perez, O.Perez, Oliver >> | 37 | 2018 | L | 99 | 83 | 0 | 11 | 1 | 2.83 | .262 | 1.04 | 6.3 | 3.1 | 8.1 | 105.0 | 73 | 33 | 33 | 6 | 36 | 94 | 0 | 1 | 3 | 0 | 0 | 3 | 1 | 3.07 |
| RP | Cole, T.Cole, Taylor † + >> | 28 | 2018 | R | 97 | 78 | 0 | 10 | 0 | 1.64 | .246 | 0.94 | 5.8 | 2.7 | 8.8 | 143.0 | 92 | 29 | 26 | 5 | 43 | 140 | 0 | 15 | 5 | 0 | 0 | 5 | 1 | 2.50 |
| RP | Strahm, M.Strahm, Matt >> | 26 | 2018 | L | 96 | 58 | 0 | 9 | 3 | 2.61 | .271 | 1.07 | 7.8 | 1.8 | 11.6 | 69.0 | 60 | 20 | 20 | 5 | 14 | 89 | 0 | 6 | 2 | 0 | 0 | 3 | 1 | 2.10 |
| RP | Winkler, D.Winkler, Dan + >> | 28 | 2018 | R | 72 | 37 | 0 | 1 | 5 | 4.46 | .283 | 1.10 | 6.8 | 3.3 | 13.3 | 36.1 | 27 | 18 | 18 | 2 | 13 | 53 | 0 | 7 | 0 | 0 | 0 | 3 | 0 | 2.11 |
| RP | Minter, A.Minter, A.J. >> | 24 | 2018 | L | 58 | 35 | 0 | 3 | 0 | 4.31 | .328 | 1.44 | 11.1 | 2.1 | 9.5 | 39.2 | 48 | 19 | 19 | 4 | 9 | 41 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 3.00 |
| SP | Giolito, L.Giolito, Lucas >> | 23 | 2018 | R | 26 | 10 | 0 | 3 | 1 | 1.74 | .285 | 1.13 | 7.8 | 2.3 | 6.4 | 31.0 | 27 | 6 | 6 | 3 | 8 | 22 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 3.81 |