| SP | Strasburg, S.Strasburg, Stephen # >> | 30 | 2019 | R | 94 | 34 | 34 | 13 | 10 | 4.25 | .315 | 1.34 | 9.0 | 3.0 | 9.2 | 218.1 | 219 | 107 | 103 | 21 | 73 | 224 | 1 | 0 | 0 | 0 | 18 | 9 | 6 | 3.33 |
| SP | Scherzer, M.Scherzer, Max >> | 35 | 2019 | R | 89 | 33 | 33 | 20 | 8 | 3.33 | .258 | 1.01 | 7.2 | 1.9 | 9.2 | 221.2 | 177 | 91 | 82 | 21 | 46 | 226 | 2 | 0 | 0 | 1 | 23 | 8 | 0 | 2.92 |
| SP | Martinez, P.Martinez, Pedro >> | 23 | 1994 | R | 77 | 32 | 32 | 10 | 6 | 5.12 | .353 | 1.60 | 10.4 | 4.0 | 6.7 | 172.1 | 199 | 109 | 98 | 30 | 77 | 128 | 0 | 0 | 0 | 0 | 13 | 6 | 8 | 5.23 |
| RP | Wetteland, J.Wetteland, John † >> | 28 | 1994 | R | 78 | 97 | 0 | 6 | 6 | 3.41 | .275 | 1.09 | 6.6 | 3.3 | 7.3 | 113.1 | 83 | 43 | 43 | 13 | 41 | 92 | 0 | 8 | 7 | 0 | 0 | 5 | 0 | 4.09 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 35 | 2015 | R | 65 | 44 | 0 | 7 | 5 | 4.88 | .357 | 1.65 | 10.9 | 3.9 | 6.2 | 48.0 | 58 | 27 | 26 | 10 | 21 | 33 | 0 | 3 | 3 | 0 | 0 | 1 | 0 | 5.71 |
| RP | Thornton, M.Thornton, Matt >> | 39 | 2015 | L | 62 | 106 | 0 | 3 | 4 | 4.65 | .313 | 1.35 | 9.5 | 2.7 | 6.7 | 69.2 | 73 | 39 | 36 | 4 | 21 | 51 | 0 | 4 | 1 | 0 | 0 | 1 | 1 | 3.23 |
| RP | Reardon, J.Reardon, Jeff >> | 27 | 1982 | R | 56 | 53 | 0 | 1 | 2 | 2.15 | .295 | 1.25 | 7.7 | 3.6 | 7.1 | 67.0 | 57 | 17 | 16 | 3 | 27 | 53 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 3.21 |
| SP | Rogers, S.Rogers, Steve >> | 33 | 1982 | R | 59 | 33 | 0 | 9 | 1 | 3.68 | .303 | 1.29 | 8.6 | 3.0 | 4.8 | 102.2 | 98 | 43 | 42 | 12 | 34 | 54 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 4.53 |