P · 19 seasons · 1969 – 1988 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | PIT | 2 | -2.20 | #547 | #77,477 |
| 1970★ | PIT | 14 | -2.07 | #410 | #61,311 |
| 1972 | PIT | 4 | -2.25 | #529 | #83,020 |
| 1973 | KC | 49 | -2.28 | #437 | #85,625 |
| 1974 | PHI | 51 | -2.34 | #708 | #91,275 |
| 1975 | PHI | 71 | -2.40 | #707 | #95,137 |
| 1976 | PHI | 59 | -2.30 | #460 | #88,104 |
| 1977 | PHI | 64 | -2.64 | #828 | #103,426 |
| 1978 | ATL | 66 | -2.59 | #835 | #102,239 |
| 1979 | ATL | 68 | -2.21 | #440 | #78,660 |
| 1980 | ATL | 68 | -2.19 | #466 | #77,113 |
| 1981 | ATL | 35 | -2.47 | #805 | #98,331 |
| 1982 | ATL | 69 | -2.46 | #826 | #97,728 |
| 1983 | ATL | 43 | -2.32 | #764 | #89,933 |
| 1984 | ATL | 62 | -2.44 | #827 | #96,960 |
| 1985 | ATL | 59 | -2.21 | #467 | #78,115 |
| 1986 | ATL | 61 | -2.38 | #784 | #93,968 |
| 1987 | ATL | 62 | -2.40 | #834 | #95,188 |
| 1988 | KC | 26 | -2.22 | #479 | #78,807 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | PIT | 2 | -2.44 | #253 | #38,209 |
| 1970 | PIT | 14 | -2.76 | #285 | #42,612 |
| 1972 | PIT | 4 | -2.70 | #275 | #41,923 |
| 1973 | KC | 48 | 1.18 | #99 | #14,032 |
| 1974 | PHI | 51 | 0.23 | #118 | #17,435 |
| 1975 | PHI | 71 | 4.79 | #34 | #5,775 |
| 1976 | PHI | 59 | 4.55 | #43 | #6,159 |
| 1977 | PHI | 64 | 7.27 | #22 | #2,841 |
| 1978★ | ATL | 65 | 9.03 | #9 | #1,603 |
| 1979 | ATL | 68 | 4.36 | #54 | #6,459 |
| 1980 | ATL | 68 | 0.33 | #138 | #17,033 |
| 1981 | ATL | 35 | 1.37 | #100 | #13,420 |
| 1982 | ATL | 69 | 8.85 | #11 | #1,696 |
| 1983 | ATL | 43 | -0.55 | #182 | #20,942 |
| 1984 | ATL | 62 | 2.48 | #87 | #10,268 |
| 1985 | ATL | 59 | 0.82 | #125 | #15,232 |
| 1986 | ATL | 61 | 5.02 | #45 | #5,437 |
| 1987 | ATL | 62 | 2.71 | #89 | #9,728 |
| 1988 | KC | 26 | -0.93 | #191 | #22,950 |
★ Best season by Z