P · 13 seasons · 2009 – 2021 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009 | OAK | 30 | -2.20 | #1,057 | #77,811 |
| 2010 | OAK | 19 | -2.12 | #582 | #67,515 |
| 2011 | OAK | 13 | -2.14 | #990 | #71,161 |
| 2012 | OAK | 6 | -2.13 | #610 | #68,950 |
| 2013 | OAK | 16 | -2.10 | #589 | #63,950 |
| 2014 | COL | 8 | -2.22 | #1,161 | #79,563 |
| 2015 | LAD | 31 | -3.02 | #1,333 | #108,695 |
| 2016 | LAD | 4 | -2.13 | #1,126 | #68,511 |
| 2017 | TOR | 13 | -2.14 | #1,122 | #70,795 |
| 2018 | OAK | 17 | -2.07 | #594 | #61,849 |
| 2019★ | OAK | 31 | -1.76 | #495 | #45,852 |
| 2020 | MIL | 10 | -2.06 | #508 | #58,623 |
| 2021 | MIL | 24 | -2.84 | #1,486 | #106,901 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009★ | OAK | 30 | 5.09 | #67 | #5,321 |
| 2010 | OAK | 19 | 3.42 | #101 | #8,227 |
| 2011 | OAK | 13 | -0.38 | #257 | #20,146 |
| 2012 | OAK | 6 | 0.46 | #227 | #16,522 |
| 2013 | OAK | 16 | -2.62 | #561 | #40,772 |
| 2014 | COL | 8 | -0.99 | #318 | #23,296 |
| 2015 | LAD | 31 | 2.78 | #118 | #9,544 |
| 2016 | LAD | 4 | -3.61 | #716 | #48,739 |
| 2017 | TOR | 13 | -2.88 | #666 | #43,964 |
| 2018 | OAK | 17 | -0.32 | #300 | #19,858 |
| 2019 | OAK | 31 | 4.63 | #91 | #6,029 |
| 2020 | MIL | 10 | 2.54 | #147 | #10,114 |
| 2021 | MIL | 24 | 0.00 | #311 | #18,434 |
★ Best season by Z