| SP | Buehler, W.Buehler, Walker # >> | 23 | 2018 | R | 90 | 21 | 21 | 10 | 6 | 3.83 | .271 | 1.08 | 7.4 | 2.4 | 10.3 | 129.1 | 106 | 55 | 55 | 16 | 34 | 147 | 0 | 0 | 0 | 0 | 12 | 4 | 2 | 3.22 |
| SP | Paxton, J.Paxton, James >> | 29 | 2018 | L | 45 | 19 | 19 | 8 | 8 | 5.15 | .328 | 1.44 | 9.6 | 3.4 | 10.4 | 94.1 | 100 | 57 | 54 | 20 | 36 | 109 | 0 | 0 | 0 | 0 | 9 | 2 | 6 | 4.66 |
| SP | Wheeler, Z.Wheeler, Zack >> | 28 | 2018 | R | 37 | 20 | 19 | 5 | 9 | 4.83 | .352 | 1.57 | 10.1 | 4.1 | 6.9 | 113.2 | 127 | 61 | 61 | 17 | 51 | 87 | 0 | 1 | 0 | 0 | 7 | 7 | 2 | 4.96 |
| RP | Sanchez, A.Sanchez, Aaron † >> | 21 | 2014 | R | 90 | 50 | 0 | 5 | 1 | 2.61 | .262 | 1.03 | 5.2 | 4.1 | 7.2 | 86.1 | 50 | 27 | 25 | 7 | 39 | 69 | 0 | 3 | 1 | 0 | 0 | 3 | 2 | 3.92 |
| RP | Marmol, C.Marmol, Carlos >> | 28 | 2010 | R | 40 | 54 | 0 | 3 | 3 | 5.20 | .349 | 1.59 | 8.2 | 6.2 | 11.8 | 55.1 | 50 | 35 | 32 | 10 | 38 | 72 | 0 | 3 | 2 | 0 | 0 | 1 | 0 | 4.87 |
| RP | Blanton, J.Blanton, Joe >> | 36 | 2016 | R | 28 | 48 | 0 | 3 | 2 | 4.20 | .286 | 1.19 | 7.0 | 3.8 | 11.0 | 55.2 | 43 | 26 | 26 | 8 | 23 | 67 | 0 | 4 | 0 | 0 | 0 | 1 | 1 | 3.76 |
| RP | Stammen, C.Stammen, Craig >> | 34 | 2018 | R | 15 | 41 | 0 | 3 | 1 | 5.09 | .346 | 1.54 | 10.8 | 3.1 | 8.0 | 46.0 | 55 | 26 | 26 | 5 | 16 | 41 | 0 | 1 | 2 | 0 | 0 | 2 | 1 | 3.80 |
| SP | Masterson, J.Masterson, Justin >> | 28 | 2013 | R | 25 | 24 | 0 | 2 | 1 | 3.40 | .304 | 1.29 | 8.4 | 3.2 | 9.4 | 45.0 | 42 | 17 | 17 | 9 | 16 | 47 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 4.64 |