| SP | Buehler, W.Buehler, Walker >> | 23 | 2018 | R | 90 | 34 | 34 | 10 | 14 | 4.29 | .327 | 1.43 | 9.5 | 3.3 | 8.6 | 197.0 | 209 | 99 | 94 | 23 | 73 | 189 | 0 | 0 | 0 | 0 | 17 | 5 | 4 | 3.79 |
| SP | Richards, G.Richards, Garrett † # >> | 26 | 2014 | R | 72 | 33 | 33 | 16 | 7 | 3.72 | .283 | 1.17 | 7.9 | 2.6 | 8.5 | 227.2 | 200 | 96 | 94 | 29 | 66 | 215 | 2 | 0 | 0 | 1 | 21 | 4 | 17 | 3.69 |
| SP | Corbin, P.Corbin, Patrick >> | 28 | 2018 | L | 64 | 31 | 31 | 9 | 16 | 6.20 | .344 | 1.53 | 10.5 | 3.3 | 10.6 | 167.0 | 194 | 116 | 115 | 35 | 61 | 197 | 0 | 0 | 0 | 0 | 14 | 8 | 5 | 4.60 |
| RP | Boxberger, B.Boxberger, Brad >> | 26 | 2014 | R | 87 | 87 | 0 | 4 | 2 | 3.26 | .305 | 1.29 | 7.8 | 3.9 | 11.5 | 77.1 | 67 | 30 | 28 | 8 | 33 | 98 | 0 | 13 | 3 | 0 | 0 | 2 | 3 | 3.17 |
| RP | Treinen, B.Treinen, Blake >> | 30 | 2018 | R | 79 | 61 | 0 | 3 | 2 | 2.39 | .282 | 1.11 | 6.6 | 3.5 | 11.3 | 60.1 | 44 | 16 | 16 | 5 | 23 | 75 | 0 | 14 | 2 | 0 | 0 | 4 | 3 | 2.93 |
| RP | Ottavino, A.Ottavino, Adam >> | 32 | 2018 | R | 60 | 31 | 0 | 4 | 2 | 1.82 | .276 | 1.08 | 6.5 | 3.4 | 9.3 | 29.2 | 21 | 6 | 6 | 4 | 11 | 30 | 0 | 3 | 3 | 0 | 0 | 2 | 1 | 4.07 |
| RP | Marmol, C.Marmol, Carlos >> | 28 | 2010 | R | 41 | 18 | 0 | 7 | 1 | 2.53 | .333 | 1.45 | 5.1 | 8.1 | 13.7 | 21.1 | 12 | 6 | 6 | 1 | 19 | 32 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3.43 |
| RP | Rivero, F.Rivero, Felipe >> | 27 | 2019 | L | 46 | 120 | 0 | 3 | 1 | 3.08 | .316 | 1.34 | 8.6 | 3.5 | 11.4 | 64.1 | 61 | 22 | 22 | 7 | 25 | 81 | 0 | 3 | 1 | 0 | 0 | 3 | 2 | 3.20 |
| SP | Morton, C.Morton, Charlie >> | 36 | 2019 | R | 54 | 28 | 0 | 2 | 1 | 4.51 | .324 | 1.41 | 8.8 | 3.9 | 9.6 | 103.2 | 101 | 52 | 52 | 14 | 45 | 110 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 4.03 |