| SP | Greinke, Z.Greinke, Zack >> | 32 | 2015 | R | 92 | 35 | 35 | 13 | 13 | 3.31 | .264 | 1.04 | 7.4 | 1.9 | 6.6 | 269.0 | 222 | 102 | 99 | 39 | 58 | 198 | 10 | 0 | 0 | 3 | 21 | 9 | 4 | 4.16 |
| SP | Giolito, L.Giolito, Lucas >> | 24 | 2019 | R | 72 | 34 | 34 | 11 | 9 | 4.22 | .315 | 1.36 | 8.1 | 4.1 | 9.9 | 211.1 | 191 | 100 | 99 | 29 | 96 | 231 | 1 | 0 | 0 | 1 | 17 | 5 | 6 | 4.03 |
| SP | Foltynewicz, M.Foltynewicz, Michael # >> | 26 | 2018 | R | 67 | 33 | 33 | 14 | 8 | 4.75 | .311 | 1.34 | 8.0 | 4.1 | 9.0 | 199.0 | 176 | 106 | 105 | 29 | 90 | 198 | 1 | 0 | 0 | 1 | 14 | 4 | 4 | 4.32 |
| SP | Morton, C.Morton, Charlie # >> | 36 | 2019 | R | 56 | 33 | 33 | 11 | 16 | 5.52 | .332 | 1.48 | 10.3 | 3.1 | 10.0 | 187.2 | 213 | 122 | 115 | 45 | 65 | 207 | 0 | 0 | 0 | 0 | 17 | 2 | 2 | 4.99 |
| SP | Gonzalez, G.Gonzalez, Gio >> | 27 | 2012 | L | 48 | 31 | 31 | 9 | 12 | 6.10 | .363 | 1.67 | 10.5 | 4.6 | 10.1 | 180.0 | 210 | 125 | 122 | 25 | 91 | 202 | 0 | 0 | 0 | 0 | 9 | 7 | 5 | 4.19 |
| RP | O'Day, D.O'Day, Darren >> | 32 | 2014 | R | 65 | 86 | 0 | 4 | 7 | 3.26 | .285 | 1.16 | 6.8 | 3.7 | 9.1 | 107.2 | 81 | 40 | 39 | 20 | 44 | 108 | 0 | 10 | 6 | 0 | 0 | 4 | 0 | 4.76 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 34 | 2014 | R | 48 | 65 | 0 | 5 | 4 | 4.63 | .319 | 1.39 | 8.9 | 3.8 | 7.4 | 79.2 | 78 | 41 | 41 | 15 | 33 | 65 | 0 | 4 | 3 | 0 | 0 | 1 | 2 | 5.11 |
| RP | Knebel, C.Knebel, Corey >> | 25 | 2017 | R | 32 | 67 | 0 | 5 | 3 | 4.11 | .323 | 1.39 | 8.2 | 4.2 | 9.5 | 70.0 | 64 | 32 | 32 | 10 | 33 | 74 | 0 | 3 | 1 | 0 | 0 | 3 | 0 | 4.29 |
| SP | Halladay, R.Halladay, Roy >> | 33 | 2010 | R | 43 | 1 | 0 | 0 | 0 | 0.00 | .000 | 0.00 | - | - | - | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |
| SP | Johnson, J.Johnson, Josh >> | 26 | 2010 | R | 39 | 2 | 0 | 1 | 0 | 3.72 | .326 | 1.45 | 11.0 | 3.0 | 10.0 | 9.2 | 11 | 4 | 4 | 3 | 3 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6.11 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 46 | 39 | 0 | 5 | 2 | 4.69 | .349 | 1.59 | 10.6 | 3.9 | 9.7 | 63.1 | 74 | 33 | 33 | 6 | 27 | 68 | 0 | 4 | 0 | 0 | 0 | 1 | 2 | 3.41 |