| SP | Mason, M.Mason, Mike # >> | 26 | 1984 | L | 92 | 26 | 26 | 4 | 9 | 4.09 | .309 | 1.32 | 9.5 | 2.4 | 4.9 | 145.1 | 153 | 69 | 66 | 15 | 39 | 79 | 0 | 0 | 0 | 0 | 10 | 3 | 4 | 4.12 |
| SP | Wilcox, M.Wilcox, Milt >> | 34 | 1984 | R | 56 | 25 | 25 | 4 | 12 | 4.74 | .328 | 1.47 | 9.6 | 3.6 | 4.3 | 129.0 | 137 | 77 | 68 | 17 | 52 | 62 | 0 | 0 | 0 | 0 | 8 | 0 | 2 | 4.96 |
| SP | Koosman, J.Koosman, Jerry >> | 42 | 1984 | L | 32 | 24 | 24 | 5 | 11 | 6.42 | .345 | 1.58 | 11.2 | 3.1 | 5.9 | 123.1 | 153 | 88 | 88 | 22 | 42 | 81 | 1 | 0 | 0 | 1 | 10 | 0 | 3 | 5.03 |
| RP | Harris, G.Harris, Greg >> | 29 | 1984 | R | 92 | 64 | 0 | 4 | 3 | 3.50 | .308 | 1.34 | 7.3 | 4.8 | 6.9 | 92.2 | 75 | 41 | 36 | 2 | 49 | 71 | 0 | 2 | 5 | 0 | 0 | 0 | 7 | 3.34 |
| RP | Brusstar, W.Brusstar, Warren >> | 32 | 1984 | R | 61 | 63 | 0 | 2 | 7 | 3.96 | .305 | 1.31 | 9.6 | 2.3 | 6.0 | 88.2 | 94 | 48 | 39 | 8 | 22 | 59 | 0 | 1 | 5 | 0 | 0 | 1 | 1 | 3.63 |
| SP | Niekro, P.Niekro, Phil >> | 45 | 1984 | R | 19 | 9 | 0 | 0 | 0 | 14.40 | .552 | 3.70 | 24.3 | 9.0 | 3.6 | 10.0 | 27 | 21 | 16 | 0 | 10 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 5.20 |
| SP | Romanick, R.Romanick, Ron >> | 24 | 1984 | R | 25 | 42 | 0 | 4 | 8 | 7.28 | .402 | 2.01 | 14.6 | 3.6 | 5.6 | 68.0 | 110 | 55 | 55 | 10 | 27 | 42 | 0 | 3 | 5 | 0 | 0 | 0 | 3 | 4.87 |