| SP | Martinez, R.Martinez, Ramon >> | 30 | 1998 | R | 94 | 19 | 19 | 5 | 6 | 3.45 | .318 | 1.37 | 7.9 | 4.5 | 7.6 | 130.1 | 114 | 52 | 50 | 10 | 65 | 110 | 0 | 0 | 0 | 0 | 13 | 3 | 5 | 3.88 |
| SP | Morris, M.Morris, Matt † >> | 24 | 1998 | R | 70 | 19 | 19 | 11 | 1 | 3.17 | .287 | 1.18 | 7.3 | 3.4 | 6.2 | 139.1 | 113 | 49 | 49 | 11 | 52 | 96 | 3 | 0 | 0 | 1 | 11 | 3 | 3 | 3.83 |
| SP | Irabu, H.Irabu, Hideki † >> | 29 | 1998 | R | 68 | 18 | 18 | 10 | 6 | 2.49 | .268 | 1.07 | 5.7 | 4.0 | 6.9 | 119.1 | 75 | 36 | 33 | 9 | 53 | 91 | 0 | 0 | 0 | 0 | 14 | 3 | 0 | 3.87 |
| RP | Rhodes, A.Rhodes, Arthur >> | 29 | 1998 | L | 57 | 30 | 0 | 2 | 0 | 2.08 | .269 | 1.08 | 5.5 | 4.2 | 8.1 | 39.0 | 24 | 9 | 9 | 1 | 18 | 35 | 0 | 8 | 1 | 0 | 0 | 1 | 1 | 3.00 |
| RP | Hernandez, R.Hernandez, Roberto >> | 34 | 1998 | R | 50 | 23 | 0 | 3 | 1 | 4.33 | .314 | 1.37 | 9.7 | 2.7 | 9.0 | 27.0 | 29 | 13 | 13 | 1 | 8 | 27 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 2.37 |
| RP | Nitkowski, C.Nitkowski, C.J. >> | 25 | 1998 | L | 62 | 10 | 0 | 0 | 0 | 9.28 | .429 | 2.25 | 15.3 | 6.3 | 8.1 | 10.2 | 17 | 11 | 11 | 4 | 7 | 9 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 8.50 |
| RP | Orosco, J.Orosco, Jesse >> | 41 | 1998 | L | 52 | 15 | 0 | 2 | 2 | 4.15 | .278 | 1.15 | 8.5 | 2.1 | 4.2 | 17.1 | 16 | 8 | 8 | 4 | 4 | 8 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 5.82 |
| RP | Trombley, M.Trombley, Mike >> | 31 | 1998 | R | 34 | 17 | 0 | 0 | 1 | 5.79 | .309 | 1.29 | 9.5 | 2.5 | 7.0 | 18.2 | 19 | 12 | 12 | 3 | 5 | 14 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 4.61 |