P · 15 seasons · 2001 – 2017 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2001 | TEX | 4 | -2.13 | #621 | #68,529 |
| 2003 | TEX | 38 | -2.03 | #532 | #55,184 |
| 2004 | TEX | 25 | -2.12 | #583 | #67,099 |
| 2005 | TEX | 9 | -2.10 | #572 | #64,779 |
| 2006 | TEX | 1 | -2.08 | #573 | #62,675 |
| 2008 | SEA | 32 | -2.04 | #578 | #55,560 |
| 2009 | MIN | 35 | -2.10 | #571 | #64,315 |
| 2010★ | NYM | 27 | -1.69 | #467 | #44,631 |
| 2011 | NYM | 33 | -2.95 | #1,274 | #108,113 |
| 2012 | NYM | 34 | -2.83 | #1,250 | #106,720 |
| 2013 | TOR | 34 | -1.92 | #524 | #48,984 |
| 2014 | TOR | 35 | -2.36 | #1,219 | #92,763 |
| 2015 | TOR | 33 | -2.16 | #1,132 | #73,387 |
| 2016 | TOR | 31 | -2.06 | #989 | #58,502 |
| 2017 | ATL | 31 | -2.78 | #1,325 | #106,093 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2001 | TEX | 4 | -2.64 | #483 | #41,153 |
| 2003 | TEX | 38 | 0.40 | #188 | #16,756 |
| 2004 | TEX | 25 | -2.06 | #421 | #32,385 |
| 2005 | TEX | 9 | -2.64 | #507 | #41,052 |
| 2006 | TEX | 1 | -2.92 | #560 | #44,371 |
| 2008 | SEA | 32 | -1.94 | #415 | #30,729 |
| 2009 | MIN | 35 | -2.13 | #459 | #33,538 |
| 2010 | NYM | 27 | 6.27 | #46 | #3,849 |
| 2011 | NYM | 33 | 4.94 | #72 | #5,548 |
| 2012★ | NYM | 34 | 14.20 | #1 | #235 |
| 2013 | TOR | 34 | 4.55 | #83 | #6,160 |
| 2014 | TOR | 34 | 5.03 | #75 | #5,414 |
| 2015 | TOR | 33 | 4.61 | #80 | #6,048 |
| 2016 | TOR | 30 | 1.79 | #153 | #12,172 |
| 2017 | ATL | 31 | 2.92 | #126 | #9,224 |
★ Best season by Z