| SP | Smoltz, J.Smoltz, John † >> | 32 | 1999 | R | 96 | 19 | 19 | 7 | 5 | 2.94 | .293 | 1.24 | 8.0 | 3.2 | 6.5 | 131.2 | 117 | 45 | 43 | 13 | 46 | 94 | 1 | 0 | 0 | 1 | 12 | 1 | 3 | 3.93 |
| SP | Hermanson, D.Hermanson, Dustin # >> | 27 | 1999 | R | 60 | 20 | 19 | 11 | 3 | 4.17 | .292 | 1.20 | 8.4 | 2.5 | 5.3 | 133.2 | 124 | 62 | 62 | 17 | 37 | 78 | 1 | 0 | 0 | 1 | 10 | 4 | 1 | 4.41 |
| RP | Guardado, E.Guardado, Eddie >> | 29 | 1999 | L | 71 | 58 | 0 | 4 | 3 | 4.46 | .357 | 1.62 | 8.6 | 6.1 | 8.7 | 66.2 | 63 | 33 | 33 | 7 | 45 | 64 | 0 | 4 | 6 | 0 | 0 | 3 | 0 | 4.62 |
| RP | Seanez, R.Seanez, Rudy >> | 31 | 1999 | R | 59 | 36 | 0 | 5 | 2 | 3.24 | .346 | 1.58 | 9.4 | 5.0 | 7.0 | 41.2 | 43 | 18 | 15 | 4 | 23 | 32 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 4.39 |
| RP | McGlinchy, K.McGlinchy, Kevin >> | 22 | 1999 | R | 42 | 30 | 0 | 1 | 2 | 4.61 | .369 | 1.68 | 9.0 | 6.3 | 8.7 | 27.1 | 27 | 15 | 14 | 6 | 19 | 26 | 0 | 3 | 1 | 0 | 0 | 2 | 0 | 6.30 |
| CL | Rivera, M.Rivera, Mariano >> | 30 | 1999 | R | 94 | 41 | 0 | 2 | 3 | 3.66 | .296 | 1.22 | 7.2 | 3.9 | 7.6 | 46.2 | 37 | 19 | 19 | 5 | 20 | 39 | 0 | 23 | 2 | 0 | 0 | 2 | 0 | 4.15 |