P · 8 seasons · 2009 – 2016 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009 | OAK | 17 | -2.10 | #571 | #64,315 |
| 2010 | OAK | 24 | -2.26 | #1,071 | #84,151 |
| 2011 | KC | 7 | -2.18 | #1,052 | #74,881 |
| 2012★ | KC | 18 | -1.97 | #529 | #50,422 |
| 2013 | PIT | 57 | -2.17 | #1,082 | #74,119 |
| 2014 | PIT | 5 | -2.10 | #983 | #64,676 |
| 2015 | MIA | 10 | -2.05 | #594 | #57,923 |
| 2016 | SF | 2 | -2.06 | #989 | #58,502 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009 | OAK | 17 | -2.88 | #579 | #43,911 |
| 2010 | OAK | 24 | -0.32 | #242 | #19,862 |
| 2011 | KC | 7 | -4.04 | #649 | #49,825 |
| 2012 | KC | 18 | -2.72 | #560 | #42,130 |
| 2013★ | PIT | 57 | 2.11 | #145 | #11,237 |
| 2014 | PIT | 5 | -1.88 | #424 | #30,096 |
| 2015 | MIA | 10 | -2.26 | #561 | #35,406 |
| 2016 | SF | 2 | -2.81 | #658 | #43,177 |
★ Best season by Z