| SP | Carrasco, C.Carrasco, Carlos >> | 31 | 2018 | R | 81 | 20 | 20 | 9 | 7 | 5.19 | .329 | 1.45 | 10.5 | 2.5 | 9.4 | 111.0 | 130 | 64 | 64 | 9 | 31 | 116 | 0 | 0 | 0 | 0 | 10 | 2 | 2 | 2.86 |
| SP | Hellickson, J.Hellickson, Jeremy >> | 31 | 2018 | R | 80 | 19 | 19 | 7 | 3 | 3.74 | .307 | 1.30 | 9.2 | 2.5 | 6.8 | 101.0 | 103 | 47 | 42 | 12 | 28 | 76 | 0 | 0 | 0 | 0 | 7 | 3 | 2 | 3.96 |
| SP | Manaea, S.Manaea, Sean >> | 26 | 2018 | L | 77 | 20 | 19 | 4 | 5 | 5.33 | .335 | 1.47 | 10.7 | 2.6 | 5.8 | 104.2 | 124 | 62 | 62 | 13 | 30 | 67 | 0 | 0 | 0 | 0 | 9 | 4 | 6 | 4.32 |
| CL | Castillo, J.Castillo, Jose >> | 22 | 2018 | L | 97 | 52 | 0 | 1 | 3 | 4.59 | .332 | 1.47 | 8.8 | 4.4 | 10.4 | 51.0 | 50 | 30 | 26 | 4 | 25 | 59 | 0 | 23 | 7 | 0 | 0 | 1 | 0 | 3.24 |
| SU | Robertson, D.Robertson, David >> | 33 | 2018 | R | 89 | 53 | 0 | 6 | 1 | 3.30 | .266 | 1.02 | 5.5 | 3.8 | 9.9 | 62.2 | 38 | 25 | 23 | 5 | 26 | 68 | 0 | 2 | 1 | 0 | 0 | 4 | 1 | 3.31 |
| RP | Jansen, K.Jansen, Kenley >> | 30 | 2018 | R | 85 | 58 | 0 | 5 | 3 | 3.56 | .310 | 1.30 | 9.0 | 2.7 | 9.6 | 73.1 | 73 | 30 | 29 | 9 | 22 | 78 | 0 | 2 | 4 | 0 | 0 | 4 | 0 | 3.53 |
| RP | Rodriguez, R.Rodriguez, Richard >> | 28 | 2018 | R | 77 | 64 | 0 | 7 | 5 | 2.74 | .286 | 1.18 | 7.3 | 3.4 | 9.7 | 75.2 | 61 | 25 | 23 | 8 | 28 | 81 | 0 | 2 | 3 | 0 | 0 | 2 | 4 | 3.43 |
| RP | Morrow, B.Morrow, Brandon >> | 34 | 2018 | R | 69 | 46 | 0 | 3 | 3 | 3.61 | .329 | 1.41 | 9.5 | 3.3 | 11.1 | 52.1 | 55 | 25 | 21 | 5 | 19 | 64 | 0 | 1 | 1 | 0 | 0 | 3 | 3 | 3.06 |