P · 13 seasons · 1972 – 1986 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1972 | CIN | 3 | -2.23 | #480 | #79,860 |
| 1973 | CIN | 16 | -2.40 | #670 | #95,166 |
| 1974 | SD | 47 | -2.33 | #706 | #90,941 |
| 1975 | SD | 67 | -2.31 | #466 | #88,996 |
| 1976 | SD | 49 | -2.48 | #726 | #98,942 |
| 1977 | SD | 76 | -2.28 | #466 | #85,643 |
| 1978 | CIN | 57 | -2.28 | #697 | #85,581 |
| 1979★ | CIN | 53 | -2.20 | #429 | #77,543 |
| 1980 | CIN | 27 | -2.29 | #501 | #86,677 |
| 1982 | MON | 1 | -2.23 | #491 | #80,396 |
| 1983 | PIT | 5 | -2.26 | #494 | #83,790 |
| 1985 | PIT | 1 | -2.24 | #482 | #81,336 |
| 1986 | MON | 7 | -2.31 | #503 | #89,035 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1972 | CIN | 3 | -2.75 | #280 | #42,526 |
| 1973 | CIN | 16 | -2.17 | #205 | #33,980 |
| 1974 | SD | 47 | -1.90 | #203 | #30,345 |
| 1975 | SD | 67 | -0.57 | #155 | #21,015 |
| 1976 | SD | 49 | -0.62 | #146 | #21,312 |
| 1977★ | SD | 76 | 1.11 | #111 | #14,252 |
| 1978 | CIN | 57 | -2.42 | #252 | #37,808 |
| 1979 | CIN | 53 | -0.38 | #164 | #20,175 |
| 1980 | CIN | 27 | -3.08 | #321 | #45,747 |
| 1982 | MON | 1 | -2.65 | #282 | #41,224 |
| 1983 | PIT | 5 | -2.76 | #306 | #42,570 |
| 1985 | PIT | 1 | -2.48 | #289 | #38,777 |
| 1986 | MON | 7 | -2.80 | #340 | #43,097 |
★ Best season by Z