| SP | Arrieta, J.Arrieta, Jake >> | 29 | 2015 | R | 93 | 22 | 22 | 14 | 5 | 3.38 | .263 | 1.07 | 7.2 | 2.4 | 8.0 | 133.1 | 106 | 51 | 50 | 12 | 36 | 118 | 0 | 0 | 0 | 0 | 16 | 1 | 3 | 3.23 |
| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 23 | 22 | 10 | 6 | 3.02 | .260 | 1.06 | 7.6 | 2.0 | 3.5 | 143.0 | 120 | 49 | 48 | 12 | 31 | 55 | 4 | 0 | 0 | 1 | 16 | 0 | 3 | 3.97 |
| SP | Snell, B.Snell, Blake $$ >> | 25 | 2018 | L | 80 | 21 | 21 | 11 | 4 | 3.17 | .250 | 0.99 | 5.5 | 3.5 | 7.4 | 130.2 | 79 | 46 | 46 | 17 | 50 | 107 | 0 | 0 | 0 | 0 | 14 | 2 | 4 | 4.25 |
| SP | McDowell, S.McDowell, Sam >> | 26 | 1968 | L | 45 | 21 | 20 | 8 | 5 | 4.42 | .332 | 1.45 | 8.1 | 5.0 | 7.1 | 110.0 | 99 | 58 | 54 | 14 | 61 | 87 | 1 | 0 | 0 | 0 | 9 | 4 | 2 | 4.85 |
| RP | Kimbrel, C.Kimbrel, Craig $ >> | 24 | 2012 | R | 100 | 55 | 0 | 5 | 4 | 2.93 | .261 | 1.05 | 6.2 | 3.2 | 9.1 | 86.0 | 59 | 28 | 28 | 7 | 31 | 87 | 0 | 7 | 5 | 0 | 0 | 1 | 6 | 3.15 |
| RP | Eckersley, D.Eckersley, Dennis >> | 36 | 1990 | R | 87 | 32 | 0 | 3 | 3 | 3.02 | .260 | 1.01 | 7.7 | 1.5 | 8.3 | 41.2 | 35 | 15 | 14 | 6 | 7 | 38 | 0 | 4 | 0 | 0 | 0 | 2 | 0 | 3.71 |
| RP | Devine, J.Devine, Joey >> | 25 | 2008 | R | 80 | 24 | 0 | 1 | 1 | 2.92 | .282 | 1.14 | 6.4 | 4.1 | 9.0 | 24.2 | 17 | 8 | 8 | 3 | 11 | 24 | 0 | 4 | 2 | 0 | 0 | 1 | 0 | 4.13 |
| RP | Hader, J.Hader, Josh $ >> | 24 | 2018 | L | 93 | 28 | 0 | 4 | 1 | 2.58 | .269 | 1.08 | 6.0 | 3.8 | 11.2 | 45.1 | 30 | 13 | 13 | 4 | 19 | 56 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.00 |