P · 13 seasons · 2005 – 2017 · B/T: L/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2005 | TEX | 8 | -2.10 | #572 | #64,779 |
| 2006 | TEX | 36 | -2.08 | #573 | #62,675 |
| 2007 | TEX | 29 | -2.07 | #599 | #60,502 |
| 2008 | TEX | 28 | -2.04 | #573 | #55,498 |
| 2009 | TEX | 34 | -2.27 | #1,109 | #84,750 |
| 2010 | TEX | 29 | -2.16 | #978 | #73,134 |
| 2011 | TEX | 11 | -2.11 | #611 | #65,831 |
| 2012 | TEX | 29 | -2.09 | #584 | #63,743 |
| 2013 | BAL | 31 | -1.99 | #548 | #51,796 |
| 2014 | HOU | 29 | -2.13 | #1,062 | #69,408 |
| 2015★ | HOU | 18 | -1.98 | #558 | #51,411 |
| 2016 | HOU | 40 | -2.09 | #1,068 | #63,572 |
| 2017 | CIN | 21 | -3.12 | #1,346 | #109,345 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2005 | TEX | 8 | -1.70 | #343 | #28,265 |
| 2006 | TEX | 36 | -0.91 | #298 | #22,826 |
| 2007 | TEX | 29 | -3.24 | #623 | #46,902 |
| 2008 | TEX | 28 | -1.15 | #321 | #24,264 |
| 2009★ | TEX | 34 | 5.87 | #53 | #4,277 |
| 2010 | TEX | 29 | -3.48 | #607 | #48,181 |
| 2011 | TEX | 11 | -0.78 | #292 | #22,088 |
| 2012 | TEX | 29 | -1.11 | #321 | #23,977 |
| 2013 | CHC | 30 | 4.56 | #82 | #6,140 |
| 2014 | HOU | 29 | 1.39 | #178 | #13,372 |
| 2015 | HOU | 18 | 0.31 | #235 | #17,098 |
| 2016 | HOU | 40 | 0.65 | #219 | #15,812 |
| 2017 | CIN | 21 | 0.83 | #219 | #15,180 |
★ Best season by Z