| Role | Pitcher | IP | ERA | WHIP | K/9 |
|---|---|---|---|---|---|
| 1 | Madison Bumgarner | 1,846 | 3.13 | 1.11 | 8.7 |
| 2 | Tim Lincecum | 1,643 | 3.61 | 1.27 | 9.3 |
| 3 | Matt Cain | 2,085 | 3.68 | 1.23 | 7.3 |
| 4 | Jason Schmidt | 1,069 | 3.36 | 1.18 | 9.0 |
| 5 | Logan Webb | 855 | 3.42 | 1.19 | 8.1 |
| CL | Robb Nen | 217 | 2.28 | 1.01 | 11.0 |
| RP | Brian Wilson | 320 | 3.21 | 1.34 | 9.6 |
| RP | Sergio Romo | 439 | 2.58 | 0.96 | 10.2 |
| RP | Jeremy Affeldt | 361 | 3.06 | 1.29 | 7.3 |
| RP | Tyler Rogers | 346 | 2.93 | 1.13 | 6.7 |
| RP | Javier López | 251 | 2.47 | 1.19 | 6.6 |
| RP | Félix Rodríguez | 336 | 2.91 | 1.24 | 8.6 |
| RP | Santiago Casilla | 394 | 2.42 | 1.16 | 8.3 |