| SP | Alexander, P.Alexander, Pete >> | 28 | 1915 | R | 88 | 38 | 38 | 13 | 13 | 4.27 | .302 | 1.28 | 9.0 | 2.5 | 4.9 | 251.0 | 250 | 129 | 119 | 25 | 71 | 137 | 5 | 0 | 0 | 1 | 18 | 5 | 3 | 4.11 |
| SP | Reulbach, E.Reulbach, Ed † >> | 24 | 1906 | R | 60 | 38 | 38 | 21 | 4 | 2.84 | .289 | 1.20 | 6.7 | 4.1 | 3.8 | 250.2 | 185 | 91 | 79 | 14 | 115 | 105 | 2 | 0 | 0 | 0 | 28 | 5 | 5 | 4.33 |
| SP | Fernandez, J.Fernandez, Jose >> | 21 | 2013 | R | 76 | 34 | 34 | 17 | 8 | 3.59 | .306 | 1.31 | 7.6 | 4.3 | 7.9 | 205.1 | 172 | 92 | 82 | 22 | 97 | 181 | 0 | 0 | 0 | 0 | 20 | 2 | 2 | 4.08 |
| SP | Pfiester, J.Pfiester, Jack † >> | 28 | 1906 | L | 74 | 35 | 34 | 18 | 10 | 3.47 | .300 | 1.26 | 8.3 | 3.1 | 3.8 | 244.0 | 224 | 107 | 94 | 20 | 84 | 104 | 8 | 0 | 0 | 2 | 21 | 5 | 1 | 4.31 |
| CL | Hader, J.Hader, Josh † >> | 24 | 2018 | L | 93 | 74 | 0 | 2 | 4 | 2.84 | .265 | 1.03 | 5.2 | 4.1 | 9.5 | 79.1 | 46 | 25 | 25 | 6 | 36 | 83 | 0 | 44 | 6 | 0 | 0 | 4 | 0 | 3.41 |
| RP | Gossage, R.Gossage, Rich >> | 30 | 1981 | R | 90 | 80 | 0 | 8 | 3 | 3.45 | .290 | 1.19 | 6.2 | 4.5 | 6.8 | 91.1 | 63 | 37 | 35 | 9 | 46 | 69 | 0 | 3 | 1 | 0 | 0 | 3 | 1 | 4.38 |
| RP | Eckersley, D.Eckersley, Dennis >> | 36 | 1990 | R | 88 | 95 | 0 | 8 | 5 | 3.40 | .283 | 1.18 | 8.9 | 1.9 | 5.7 | 121.2 | 119 | 50 | 46 | 11 | 25 | 76 | 0 | 4 | 3 | 0 | 0 | 0 | 0 | 3.55 |
| RP | Hochevar, L.Hochevar, Luke >> | 30 | 2013 | R | 78 | 50 | 0 | 6 | 1 | 2.85 | .256 | 1.03 | 6.3 | 3.0 | 6.9 | 60.0 | 42 | 19 | 19 | 6 | 20 | 46 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 3.77 |
| RP | Perkins, G.Perkins, Glen >> | 30 | 2013 | L | 50 | 1 | 0 | 0 | 0 | 0.00 | .500 | 3.00 | - | - | - | 0.1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |