| SP | Buehler, W.Buehler, Walker >> | 23 | 2018 | R | 84 | 13 | 13 | 3 | 4 | 4.54 | .302 | 1.30 | 8.8 | 3.0 | 8.3 | 75.1 | 73 | 38 | 38 | 11 | 25 | 69 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 4.07 |
| SP | Perez, P.Perez, Pascual >> | 31 | 1988 | R | 78 | 13 | 13 | 1 | 8 | 4.62 | .324 | 1.43 | 10.3 | 2.6 | 7.3 | 89.2 | 102 | 52 | 46 | 13 | 26 | 72 | 0 | 0 | 0 | 0 | 5 | 1 | 1 | 4.19 |
| SP | Tanana, F.Tanana, Frank # >> | 23 | 1976 | L | 73 | 12 | 12 | 4 | 6 | 5.44 | .317 | 1.33 | 9.9 | 2.1 | 7.7 | 81.0 | 89 | 51 | 49 | 16 | 19 | 69 | 3 | 0 | 0 | 1 | 4 | 5 | 2 | 4.75 |
| RP | Edwards, C.Edwards, Carl >> | 24 | 2016 | R | 94 | 35 | 0 | 1 | 3 | 5.62 | .369 | 1.75 | 9.7 | 6.4 | 11.4 | 41.2 | 44 | 26 | 26 | 5 | 29 | 52 | 0 | 1 | 2 | 0 | 0 | 0 | 8 | 4.17 |
| RP | Papelbon, J.Papelbon, Jonathan >> | 27 | 2007 | R | 91 | 29 | 0 | 2 | 2 | 3.66 | .280 | 1.14 | 7.4 | 3.0 | 10.8 | 39.1 | 32 | 16 | 16 | 5 | 13 | 47 | 0 | 5 | 3 | 0 | 0 | 1 | 0 | 3.33 |
| RP | Miller, A.Miller, Andrew >> | 29 | 2014 | L | 87 | 25 | 0 | 3 | 1 | 5.83 | .333 | 1.50 | 9.3 | 4.3 | 8.7 | 29.1 | 30 | 19 | 19 | 5 | 14 | 28 | 0 | 3 | 2 | 0 | 0 | 0 | 1 | 4.76 |
| RP | Soriano, R.Soriano, Rafael >> | 24 | 2003 | R | 83 | 17 | 0 | 0 | 0 | 2.77 | .257 | 1.00 | 6.6 | 2.4 | 10.4 | 26.0 | 19 | 8 | 8 | 2 | 7 | 30 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2.62 |
| RP | Jackson, M.Jackson, Mike >> | 30 | 1994 | R | 82 | 14 | 0 | 2 | 1 | 3.14 | .259 | 0.98 | 5.8 | 3.2 | 8.4 | 14.1 | 9 | 5 | 5 | 1 | 5 | 13 | 0 | 1 | 2 | 0 | 0 | 1 | 0 | 3.36 |
| RP | Foulke, K.Foulke, Keith >> | 31 | 2003 | R | 55 | 10 | 0 | 1 | 0 | 1.54 | .222 | 0.86 | 7.4 | 0.8 | 9.0 | 11.2 | 9 | 2 | 2 | 1 | 1 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.45 |
| SP | Candelaria, J.Candelaria, John >> | 33 | 1986 | L | 54 | 0 | 0 | 0 | 0 | - | .000 | - | - | - | - | 0.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | - |