P · 17 seasons · 2007 – 2023 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2007 | NYY | 3 | -2.07 | #599 | #60,502 |
| 2008 | NYY | 10 | -2.06 | #590 | #59,535 |
| 2009 | NYY | 1 | -2.10 | #571 | #64,315 |
| 2010 | ARI | 33 | -2.19 | #990 | #75,889 |
| 2011 | ARI | 34 | -2.83 | #1,261 | #106,706 |
| 2012 | ARI | 33 | -2.88 | #1,257 | #107,372 |
| 2013 | ARI | 32 | -2.87 | #1,281 | #107,201 |
| 2014 | SD | 33 | -2.50 | #1,259 | #99,519 |
| 2015 | SD | 30 | -2.88 | #1,323 | #107,388 |
| 2016 | KC | 33 | -2.13 | #1,126 | #68,511 |
| 2017 | KC | 30 | -2.04 | #576 | #55,680 |
| 2018 | KC | 22 | -2.01 | #562 | #52,260 |
| 2019 | KC | 63 | -2.07 | #603 | #60,853 |
| 2020 | KC | 15 | -2.06 | #508 | #58,623 |
| 2021★ | TEX | 55 | -1.98 | #625 | #50,717 |
| 2022 | ARI | 57 | -2.02 | #580 | #53,599 |
| 2023 | TEX | 16 | -2.05 | #565 | #56,843 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2007 | NYY | 3 | -0.79 | #295 | #22,180 |
| 2008 | NYY | 10 | -4.36 | #642 | #50,287 |
| 2009 | NYY | 1 | -2.13 | #454 | #33,435 |
| 2010 | ARI | 32 | 5.32 | #65 | #5,008 |
| 2011★ | ARI | 33 | 12.14 | #7 | #502 |
| 2012 | ARI | 33 | 4.91 | #69 | #5,578 |
| 2013 | ARI | 31 | -0.67 | #286 | #21,541 |
| 2014 | SD | 33 | 4.78 | #80 | #5,779 |
| 2015 | SD | 30 | 2.84 | #115 | #9,411 |
| 2016 | KC | 33 | 6.53 | #51 | #3,561 |
| 2017 | KC | 30 | 0.07 | #262 | #18,101 |
| 2018 | KC | 22 | -0.64 | #325 | #21,383 |
| 2019 | KC | 63 | 6.97 | #52 | #3,129 |
| 2020 | KC | 15 | -3.50 | #678 | #48,260 |
| 2021 | TEX | 55 | 7.18 | #57 | #2,911 |
| 2022 | ARI | 57 | 0.13 | #286 | #17,838 |
| 2023 | TEX | 16 | -2.34 | #653 | #36,603 |
★ Best season by Z