| SP | Verlander, J.Verlander, Justin # >> | 35 | 2018 | R | 98 | 28 | 28 | 11 | 12 | 4.26 | .302 | 1.25 | 8.9 | 2.3 | 10.1 | 158.1 | 157 | 78 | 75 | 16 | 41 | 177 | 1 | 0 | 0 | 0 | 16 | 8 | 1 | 3.01 |
| SP | Buchholz, C.Buchholz, Clay >> | 34 | 2018 | R | 89 | 28 | 28 | 8 | 6 | 4.14 | .306 | 1.28 | 8.0 | 3.6 | 7.8 | 158.2 | 140 | 74 | 73 | 15 | 63 | 137 | 0 | 0 | 0 | 0 | 16 | 7 | 1 | 3.83 |
| SP | Morton, C.Morton, Charlie >> | 35 | 2018 | R | 86 | 27 | 26 | 9 | 7 | 4.14 | .328 | 1.44 | 8.4 | 4.6 | 9.5 | 143.1 | 133 | 74 | 66 | 19 | 73 | 151 | 0 | 0 | 1 | 0 | 11 | 4 | 3 | 4.23 |
| SP | Greinke, Z.Greinke, Zack # >> | 35 | 2018 | R | 84 | 27 | 26 | 9 | 12 | 4.58 | .310 | 1.32 | 9.5 | 2.4 | 7.4 | 153.1 | 161 | 81 | 78 | 26 | 41 | 126 | 2 | 0 | 1 | 0 | 12 | 5 | 4 | 4.46 |
| SP | Chacin, J.Chacin, Jhoulys >> | 30 | 2018 | R | 78 | 27 | 25 | 7 | 11 | 5.36 | .361 | 1.66 | 9.6 | 5.4 | 6.7 | 121.0 | 129 | 74 | 72 | 22 | 72 | 90 | 0 | 0 | 0 | 0 | 10 | 4 | 3 | 5.76 |
| RP | Robertson, D.Robertson, David >> | 33 | 2018 | R | 89 | 95 | 0 | 5 | 7 | 3.60 | .316 | 1.32 | 8.2 | 3.7 | 9.7 | 85.0 | 77 | 37 | 34 | 10 | 35 | 92 | 0 | 1 | 2 | 0 | 0 | 6 | 0 | 3.81 |
| RP | Fields, J.Fields, Josh >> | 32 | 2018 | R | 87 | 87 | 0 | 3 | 3 | 2.01 | .269 | 1.05 | 5.6 | 3.9 | 8.8 | 80.2 | 50 | 19 | 18 | 6 | 35 | 78 | 0 | 10 | 3 | 0 | 0 | 4 | 0 | 3.49 |
| RP | Alvarado, J.Alvarado, Jose >> | 23 | 2018 | L | 80 | 53 | 0 | 1 | 8 | 4.99 | .350 | 1.61 | 8.8 | 5.8 | 10.3 | 57.2 | 56 | 33 | 32 | 11 | 37 | 65 | 0 | 4 | 3 | 0 | 0 | 0 | 3 | 5.18 |
| RP | Petit, Y.Petit, Yusmeiro >> | 34 | 2018 | R | 73 | 65 | 0 | 4 | 1 | 3.63 | .307 | 1.28 | 7.9 | 3.6 | 6.9 | 74.1 | 65 | 32 | 30 | 8 | 30 | 57 | 0 | 7 | 3 | 0 | 0 | 4 | 2 | 4.24 |