P · 8 seasons · 1978 – 1985 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1978 | DET | 5 | -2.28 | #483 | #85,287 |
| 1979 | DET | 37 | -2.29 | #466 | #87,086 |
| 1980 | DET | 17 | -2.29 | #501 | #86,677 |
| 1981 | DET | 27 | -2.26 | #504 | #83,102 |
| 1982★ | DET | 51 | -2.23 | #491 | #80,396 |
| 1983 | TEX | 27 | -2.26 | #494 | #83,790 |
| 1984 | TEX | 24 | -2.28 | #520 | #85,716 |
| 1985 | SEA | 8 | -2.24 | #482 | #81,336 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1978 | DET | 5 | -2.29 | #238 | #35,821 |
| 1979 | DET | 37 | -0.04 | #157 | #18,615 |
| 1980 | DET | 17 | -1.77 | #222 | #28,865 |
| 1981 | DET | 27 | -0.15 | #148 | #19,093 |
| 1982★ | DET | 51 | 1.73 | #105 | #12,354 |
| 1983 | TEX | 27 | 0.58 | #134 | #16,073 |
| 1984 | TEX | 24 | -1.15 | #196 | #24,284 |
| 1985 | SEA | 8 | -2.18 | #262 | #34,192 |
★ Best season by Z