P · 6 seasons · 1967 – 1972 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1967★ | HOU | 17 | -2.15 | #380 | #72,574 |
| 1968 | HOU | 43 | -2.36 | #505 | #92,689 |
| 1969 | SD | 13 | -2.20 | #547 | #77,477 |
| 1970 | SD | 53 | -2.42 | #696 | #96,243 |
| 1971 | BAL | 28 | -2.26 | #490 | #83,497 |
| 1972 | CAL | 7 | -2.23 | #480 | #79,860 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1967 | HOU | 17 | -2.81 | #253 | #43,233 |
| 1968 | HOU | 43 | -2.65 | #220 | #41,179 |
| 1969 | SD | 13 | -2.82 | #310 | #43,294 |
| 1970★ | SD | 53 | 0.71 | #123 | #15,607 |
| 1971 | BAL | 28 | -0.83 | #145 | #22,392 |
| 1972 | CAL | 7 | -1.77 | #201 | #28,903 |
★ Best season by Z