P · 15 seasons · 2004 – 2018 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | MIL | 5 | -2.33 | #1,109 | #90,646 |
| 2005 | MIL | 38 | -2.10 | #572 | #64,779 |
| 2006 | MIL | 28 | -2.27 | #1,097 | #84,405 |
| 2007 | KC | 26 | -2.24 | #1,128 | #81,322 |
| 2008 | COL | 28 | -2.41 | #1,203 | #95,662 |
| 2009 | COL | 33 | -2.93 | #1,247 | #107,927 |
| 2010 | COL | 20 | -2.35 | #1,132 | #91,883 |
| 2011 | COL | 10 | -2.00 | #554 | #52,085 |
| 2012★ | COL | 3 | -2.00 | #538 | #52,071 |
| 2013 | COL | 30 | -3.49 | #1,303 | #110,732 |
| 2014 | COL | 32 | -2.61 | #1,272 | #102,843 |
| 2015 | COL | 26 | -3.24 | #1,342 | #109,972 |
| 2016 | COL | 27 | -2.02 | #588 | #53,567 |
| 2017 | ARI | 66 | -2.04 | #573 | #55,507 |
| 2018 | ARI | 60 | -2.07 | #590 | #61,338 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | MIL | 5 | -3.13 | #581 | #46,114 |
| 2005 | MIL | 38 | -2.51 | #486 | #39,216 |
| 2006 | KC | 28 | -2.73 | #534 | #42,202 |
| 2007 | KC | 26 | -2.13 | #452 | #33,498 |
| 2008 | COL | 28 | 1.41 | #160 | #13,284 |
| 2009★ | COL | 33 | 5.56 | #55 | #4,652 |
| 2010 | COL | 20 | 1.81 | #147 | #12,109 |
| 2011 | COL | 10 | 0.78 | #182 | #15,357 |
| 2012 | COL | 3 | -3.02 | #599 | #45,284 |
| 2013 | COL | 30 | 3.65 | #99 | #7,761 |
| 2014 | COL | 32 | 3.37 | #108 | #8,310 |
| 2015 | COL | 26 | 1.76 | #158 | #12,256 |
| 2016 | COL | 27 | -2.77 | #652 | #42,736 |
| 2017 | ARI | 65 | -0.27 | #292 | #19,657 |
| 2018 | ARI | 59 | -0.80 | #332 | #22,225 |
★ Best season by Z