| SP | Lincecum, T.Lincecum, Tim >> | 25 | 2009 | R | 100 | 28 | 28 | 9 | 12 | 3.55 | .298 | 1.25 | 8.2 | 3.0 | 8.3 | 202.2 | 185 | 89 | 80 | 14 | 68 | 187 | 5 | 0 | 0 | 1 | 15 | 5 | 8 | 3.13 |
| SP | Johnson, J.Johnson, Josh # >> | 25 | 2009 | R | 89 | 27 | 27 | 12 | 10 | 3.91 | .301 | 1.27 | 9.0 | 2.5 | 6.9 | 184.1 | 183 | 84 | 80 | 20 | 51 | 141 | 1 | 0 | 0 | 1 | 15 | 4 | 5 | 3.78 |
| SP | Nolasco, R.Nolasco, Ricky >> | 27 | 2009 | R | 63 | 26 | 26 | 8 | 9 | 5.58 | .364 | 1.71 | 12.4 | 3.1 | 8.8 | 143.2 | 197 | 98 | 89 | 19 | 49 | 140 | 0 | 0 | 0 | 0 | 7 | 1 | 2 | 3.82 |
| SP | Scherzer, M.Scherzer, Max >> | 25 | 2009 | R | 50 | 26 | 26 | 7 | 12 | 5.53 | .346 | 1.58 | 10.7 | 3.6 | 9.4 | 138.1 | 164 | 92 | 85 | 22 | 55 | 144 | 0 | 0 | 0 | 0 | 11 | 1 | 7 | 4.20 |
| RP | Street, H.Street, Huston # >> | 26 | 2009 | R | 96 | 88 | 0 | 3 | 3 | 4.81 | .334 | 1.48 | 8.9 | 4.4 | 9.7 | 73.0 | 72 | 42 | 39 | 13 | 36 | 79 | 0 | 1 | 2 | 0 | 0 | 2 | 0 | 4.71 |
| RP | Hoffman, T.Hoffman, Trevor >> | 42 | 2009 | R | 95 | 77 | 0 | 2 | 6 | 4.24 | .286 | 1.20 | 7.4 | 3.5 | 6.2 | 57.1 | 47 | 28 | 27 | 8 | 22 | 39 | 0 | 10 | 1 | 0 | 0 | 0 | 0 | 4.61 |
| RP | Rhodes, A.Rhodes, Arthur >> | 40 | 2009 | L | 86 | 87 | 0 | 0 | 2 | 3.49 | .299 | 1.28 | 7.9 | 3.7 | 6.9 | 59.1 | 52 | 25 | 23 | 7 | 24 | 45 | 0 | 2 | 0 | 0 | 0 | 0 | 1 | 4.24 |
| RP | Breslow, C.Breslow, Craig >> | 29 | 2009 | L | 81 | 69 | 0 | 1 | 2 | 7.46 | .366 | 1.63 | 10.8 | 4.0 | 6.8 | 41.0 | 49 | 40 | 34 | 8 | 18 | 31 | 0 | 2 | 7 | 0 | 0 | 4 | 0 | 5.63 |
| RP | Hughes, P.Hughes, Phil >> | 23 | 2009 | R | 75 | 55 | 0 | 2 | 5 | 4.50 | .356 | 1.61 | 10.1 | 4.3 | 8.2 | 56.0 | 63 | 31 | 28 | 9 | 27 | 51 | 0 | 4 | 3 | 0 | 0 | 3 | 2 | 4.88 |
| RP | Ramirez, R.Ramirez, Ramon >> | 27 | 2009 | R | 36 | 49 | 0 | 1 | 1 | 6.38 | .349 | 1.51 | 9.2 | 4.5 | 5.6 | 42.1 | 43 | 31 | 30 | 8 | 21 | 26 | 0 | 2 | 0 | 0 | 0 | 4 | 2 | 6.02 |