P · 14 seasons · 1958 – 1975 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1958 | CIN | 9 | -2.26 | #334 | #83,442 |
| 1959 | CIN | 46 | -2.66 | #519 | #103,882 |
| 1960 | CIN | 4 | -2.26 | #365 | #83,646 |
| 1962 | KC1 | 13 | -2.37 | #543 | #93,056 |
| 1963 | KC1 | 35 | -2.43 | #540 | #96,687 |
| 1964 | KC1 | 42 | -2.44 | #588 | #96,949 |
| 1965 | DET | 42 | -2.33 | #536 | #90,724 |
| 1966 | DET | 54 | -2.48 | #622 | #98,718 |
| 1967 | CLE | 50 | -2.41 | #604 | #95,396 |
| 1970 | PIT | 23 | -2.40 | #678 | #94,817 |
| 1971 | BAL | 5 | -2.38 | #621 | #93,767 |
| 1973 | STL | 53 | -2.37 | #653 | #93,245 |
| 1974★ | STL | 46 | -2.19 | #445 | #75,907 |
| 1975 | CAL | 7 | -2.32 | #470 | #89,491 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1958 | CIN | 9 | -0.26 | #101 | #19,594 |
| 1959 | CIN | 46 | 0.12 | #86 | #17,907 |
| 1960 | CIN | 4 | -2.18 | #142 | #34,146 |
| 1962 | KC1 | 13 | 1.62 | #86 | #12,670 |
| 1963 | KC1 | 35 | 1.44 | #84 | #13,197 |
| 1964 | KC1 | 40 | 0.07 | #114 | #18,099 |
| 1965 | DET | 42 | -0.84 | #134 | #22,459 |
| 1966 | DET | 54 | 1.42 | #90 | #13,264 |
| 1967 | CLE | 50 | 1.38 | #88 | #13,381 |
| 1970 | PIT | 23 | -1.36 | #189 | #25,618 |
| 1971 | BAL | 5 | -2.41 | #247 | #37,743 |
| 1973★ | STL | 53 | 2.62 | #77 | #9,933 |
| 1974 | STL | 46 | 0.77 | #102 | #15,390 |
| 1975 | CAL | 7 | -2.46 | #242 | #38,388 |
★ Best season by Z