P · 13 seasons · 1969 – 1981 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | KC | 41 | -3.10 | #831 | #109,230 |
| 1970 | KC | 35 | -3.74 | #849 | #111,143 |
| 1971 | KC | 35 | -3.00 | #798 | #108,525 |
| 1972 | KC | 35 | -3.25 | #817 | #110,035 |
| 1973 | KC | 38 | -2.31 | #459 | #88,838 |
| 1974★ | BOS | 33 | -2.25 | #476 | #81,775 |
| 1975 | BOS | 40 | -2.32 | #470 | #89,490 |
| 1976 | CAL | 43 | -2.33 | #467 | #90,229 |
| 1977 | BAL | 49 | -2.33 | #487 | #90,439 |
| 1978 | BOS | 37 | -2.28 | #483 | #85,287 |
| 1979 | BOS | 53 | -2.29 | #466 | #87,086 |
| 1980 | BOS | 43 | -2.32 | #723 | #89,823 |
| 1981 | SEA | 39 | -2.26 | #504 | #83,102 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1969 | KC | 41 | 1.63 | #86 | #12,654 |
| 1970 | KC | 35 | 2.43 | #77 | #10,395 |
| 1971 | KC | 35 | 4.15 | #48 | #6,836 |
| 1972 | KC | 34 | 3.52 | #47 | #8,020 |
| 1973 | KC | 37 | -1.56 | #177 | #27,066 |
| 1974 | BOS | 33 | 2.19 | #74 | #11,016 |
| 1975 | BOS | 40 | 2.04 | #76 | #11,451 |
| 1976 | CAL | 43 | -0.29 | #134 | #19,737 |
| 1977 | BAL | 49 | 0.18 | #136 | #17,627 |
| 1978 | BOS | 37 | 0.85 | #118 | #15,134 |
| 1979★ | BOS | 53 | 5.01 | #45 | #5,452 |
| 1980 | BOS | 43 | 0.67 | #131 | #15,741 |
| 1981 | SEA | 39 | -1.90 | #230 | #30,315 |
★ Best season by Z