| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2000 | ATH | 14 | 14 | 92.2 | 78 | 0.58273 | 2.71942 | 1.17626 |
| 2001 | ATH | 35 | 35 | 214.1 | 205 | 0.75583 | 3.48523 | 1.23173 |
| 2002 | ATH | 35 | 35 | 229.1 | 182 | 0.94186 | 2.74709 | 1.13372 |
| 2003 | ATH | 35 | 35 | 231.2 | 146 | 0.73813 | 3.30216 | 1.18273 |
| 2004 | ATH | 34 | 34 | 213.0 | 163 | 1.18310 | 4.47887 | 1.39437 |
| 2005 | ATH | 35 | 35 | 228.1 | 171 | 1.02482 | 3.86277 | 1.20000 |
| 2006 | ATH | 34 | 34 | 221.0 | 151 | 1.09955 | 3.82805 | 1.40271 |
| 2007 | SFG | 34 | 33 | 196.2 | 131 | 1.09830 | 4.53051 | 1.34746 |
| 2008 | SFG | 32 | 32 | 180.0 | 120 | 0.80000 | 5.15000 | 1.60000 |
| 2009 | SFG | 33 | 33 | 192.0 | 154 | 0.98438 | 4.03125 | 1.35417 |
| 2010 | SFG | 34 | 33 | 199.1 | 150 | 0.90301 | 4.15385 | 1.34448 |
| 2011 | SFG | 13 | 9 | 53.2 | 32 | 1.67702 | 5.86956 | 1.39751 |
| 2012 | SFG | 32 | 32 | 184.1 | 114 | 0.97649 | 4.15009 | 1.38879 |
| 2013 | SFG | 30 | 25 | 133.1 | 86 | 1.28250 | 5.73750 | 1.70250 |
| 2015 | ATH | 3 | 2 | 7.0 | 2 | 5.14286 | 10.28571 | 2.57143 |
| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2011 | SFG (A+) | 3 | 3 | 21.1 | 19 | 0.84375 | 2.53125 | 0.93750 |
| 2011 | SFG (AAA) | 3 | 3 | 17.2 | 17 | 0.50943 | 2.54717 | 0.84906 |
| 2015 | OAK (AAA) | 24 | 22 | 138.0 | 91 | 0.65217 | 3.45652 | 1.31159 |
| Year | Team | G | GS | IP |
K |
HR9 |
ERA |
WHIP |
| 2006 | OAK (ST) | 6 | 6 | 25.0 | 22 | 2.16000 | 5.76000 | 1.60000 |
| 2007 | SFG (ST) | 6 | 6 | 23.0 | 14 | 0.78261 | 3.13043 | 1.17391 |
| 2008 | SFG (ST) | 5 | 5 | 18.1 | 4 | 1.96364 | 10.30909 | 1.96364 |
| 2009 | SFG (ST) | 7 | 7 | 31.2 | 17 | 1.42105 | 5.11579 | 1.48421 |
| 2010 | SFG (ST) | 6 | 6 | 22.2 | 16 | 1.58824 | 6.35294 | 1.80882 |
| 2011 | SFG (ST) | 6 | 6 | 27.1 | 16 | 0.32927 | 2.30488 | 1.28049 |
| 2012 | SFG (ST) | 6 | 6 | 19.1 | 13 | 2.32759 | 7.91379 | 2.27586 |
| 2013 | SFG (ST) | 6 | 5 | 23.1 | 18 | 0.00000 | 2.70000 | 1.37143 |
| 2015 | OAK (ST) | 7 | 2 | 20.2 | 14 | 2.17742 | 4.79032 | 0.96774 |