| Wins | |
| Number | Season |
| 47 | 1997 |
| 32 | 2006 |
| 28 | 2014 |
| 27 | 2001, 1999 |
| 25 | 2015, 2010, 2009, |
| 2008, 2007, 2003 | |
| Lowest ERA (Since 2003) | |
| Average | Season |
| 0.98 | 2006 |
| 2.01 | 2005 |
| 2.06 | 2007 |
| 2.09 | 2014 |
| 2.16 | 2011 |
| 2.44 | 2003 |
| Saves (Since 2003) | |
| Number | Season |
| 7 | 2014 |
| 7 | 2010 |
| 3 | 2017 |
| 3 | 2011 |
| 3 | 2008 |
| 3 | 2005 |
| 3 | 2003 |
| Complete Games (Since 2003) | |
| Number | Season |
| 24 | 2018 |
| 24 | 2015 |
| 24 | 2009 |
| 24 | 2008 |
| 24 | 2007 |
| 24 | 2006 |
| 23 | 2012 |
| Shutouts (Since 2003) | |
| Number | Season |
| 15 | 2006 |
| 12 | 2004 |
| 11 | 2007 |
| 10 | 2012 |
| 10 | 2003 |
| Innings Pitched (Since 2003) | |
| Number | Season |
| 297-2/3 | 2009 |
| 296-1/3 | 2008 |
| 289-1/3 | 2010 |
| 286 | 2007 |
| 281 | 2014 |
| 278-1/3 | 2004 |
| Strikeouts (Since 2003) | |
| Number | Season |
| 204 | 2006 |
| 188 | 2014 |
| 182 | 2007 |
| 181 | 2012 |
| 179 | 2013 |
| 173 | 2015 |
| 172 | 2011 |
