P · 10 seasons · 1980 – 1990 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1980 | OAK | 5 | -2.29 | #501 | #86,677 |
| 1981 | PIT | 7 | -2.43 | #793 | #96,340 |
| 1983 | CLE | 4 | -2.26 | #494 | #83,790 |
| 1984 | CLE | 69 | -2.28 | #520 | #85,716 |
| 1985 | CLE | 2 | -2.24 | #482 | #81,336 |
| 1986 | CLE | 51 | -2.31 | #503 | #89,035 |
| 1987 | CLE | 15 | -2.28 | #490 | #85,050 |
| 1988 | HOU | 13 | -2.25 | #748 | #82,060 |
| 1989 | SF | 13 | -2.28 | #784 | #86,186 |
| 1990★ | SF | 14 | -2.19 | #504 | #75,986 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1980 | OAK | 5 | -3.28 | #337 | #47,086 |
| 1981 | PIT | 7 | -3.39 | #321 | #47,718 |
| 1983 | CLE | 4 | -2.67 | #293 | #41,453 |
| 1984★ | CLE | 69 | 5.16 | #39 | #5,213 |
| 1985 | CLE | 2 | -2.60 | #300 | #40,451 |
| 1986 | CLE | 51 | 1.11 | #125 | #14,265 |
| 1987 | CLE | 15 | -3.25 | #378 | #46,934 |
| 1988 | HOU | 13 | -3.44 | #411 | #47,968 |
| 1989 | SF | 13 | -1.27 | #213 | #25,018 |
| 1990 | SF | 14 | -2.47 | #362 | #38,646 |
★ Best season by Z