| SP | Martinez, P.Martinez, Pedro † # | Nationals | R | 137.0 | 26 | 26 | 17 | 6 | 3.53 | .287 | 1.17 | 7.3 | 3.2 | 9.9 | 211.2 | 172 | 87 | 83 | 26 | 76 | 231 | 9 | 0 | 0 | 2 | 15 | 7 | 3 | 3.59 |
| RP | deGrom, J.deGrom, Jacob † | Metropolitans | R | 125.0 | 66 | 0 | 9 | 3 | 1.96 | .251 | 0.98 | 5.8 | 3.0 | 9.1 | 147.0 | 95 | 35 | 32 | 8 | 49 | 148 | 0 | 10 | 0 | 0 | 0 | 4 | 0 | 2.78 |
| SP | Alexander, P.Alexander, Pete † | Phanatics | R | 124.0 | 26 | 26 | 15 | 9 | 3.24 | .266 | 1.08 | 7.1 | 2.7 | 6.0 | 214.0 | 168 | 90 | 77 | 22 | 64 | 142 | 12 | 0 | 0 | 3 | 17 | 1 | 6 | 3.92 |
| CL | Jackson, M.Jackson, Mike † | Warriors | R | 115.0 | 52 | 0 | 1 | 4 | 2.47 | .261 | 1.04 | 7.2 | 2.1 | 6.7 | 51.0 | 41 | 14 | 14 | 3 | 12 | 38 | 0 | 42 | 4 | 0 | 0 | 1 | 3 | 3.04 |
| SP | Scherzer, M.Scherzer, Max | Nationals | R | 108.0 | 25 | 25 | 16 | 6 | 3.55 | .299 | 1.25 | 8.1 | 3.2 | 9.4 | 157.1 | 142 | 65 | 62 | 14 | 55 | 164 | 1 | 0 | 0 | 1 | 14 | 4 | 0 | 3.20 |
| CL | Robertson, D.Robertson, David † | Yankees | R | 89.5 | 56 | 0 | 1 | 2 | 1.94 | .249 | 0.99 | 4.5 | 4.5 | 10.8 | 60.1 | 30 | 14 | 13 | 4 | 30 | 72 | 0 | 25 | 0 | 0 | 0 | 0 | 5 | 2.97 |
| RP | Reardon, J.Reardon, Jeff † | Nationals | R | 86.5 | 60 | 0 | 7 | 1 | 1.82 | .256 | 1.03 | 5.8 | 3.5 | 4.4 | 89.0 | 57 | 20 | 18 | 5 | 35 | 44 | 0 | 9 | 3 | 0 | 0 | 0 | 1 | 3.92 |