P · 13 seasons · 2004 – 2017 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | CLE | 6 | -2.12 | #583 | #67,099 |
| 2005 | CLE | 1 | -2.10 | #572 | #64,779 |
| 2006 | CLE | 9 | -2.08 | #573 | #62,675 |
| 2007 | BAL | 32 | -2.31 | #1,168 | #88,671 |
| 2008 | BAL | 31 | -2.11 | #1,007 | #65,783 |
| 2009 | BAL | 35 | -2.10 | #568 | #63,882 |
| 2010 | BAL | 32 | -2.23 | #1,036 | #79,952 |
| 2011 | BAL | 35 | -2.15 | #1,037 | #71,388 |
| 2012 | COL | 38 | -2.61 | #1,230 | #102,695 |
| 2013 | KC | 33 | -2.10 | #948 | #65,080 |
| 2014 | KC | 33 | -2.23 | #1,165 | #80,216 |
| 2015★ | KC | 30 | -2.06 | #989 | #58,419 |
| 2017 | WSH | 1 | -2.07 | #594 | #61,344 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2004 | CLE | 6 | -1.95 | #400 | #30,938 |
| 2005 | CLE | 1 | -2.37 | #457 | #37,160 |
| 2006 | CLE | 9 | -3.09 | #572 | #45,802 |
| 2007 | BAL | 32 | 5.49 | #66 | #4,751 |
| 2008★ | BAL | 30 | 5.73 | #56 | #4,442 |
| 2009 | BAL | 33 | 0.57 | #198 | #16,120 |
| 2010 | BAL | 32 | 5.46 | #61 | #4,793 |
| 2011 | BAL | 34 | 1.20 | #166 | #13,971 |
| 2012 | KC | 33 | -1.18 | #334 | #24,452 |
| 2013 | KC | 33 | 1.87 | #159 | #11,944 |
| 2014 | KC | 32 | 1.88 | #167 | #11,894 |
| 2015 | KC | 30 | -4.47 | #723 | #50,435 |
| 2017 | WSH | 1 | -3.68 | #724 | #48,984 |
★ Best season by Z