P · 7 seasons · 1981 – 1988 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1981 | DET | 2 | -2.26 | #504 | #83,103 |
| 1982 | DET | 27 | -2.23 | #491 | #80,397 |
| 1983 | STL | 38 | -2.39 | #808 | #94,613 |
| 1984 | STL | 50 | -2.38 | #797 | #93,687 |
| 1985★ | PHI | 41 | -2.06 | #430 | #58,488 |
| 1986 | PHI | 19 | -2.35 | #738 | #91,733 |
| 1988 | PIT | 31 | -2.28 | #785 | #85,931 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1981 | DET | 2 | -2.69 | #285 | #41,703 |
| 1982 | DET | 27 | -0.72 | #173 | #21,799 |
| 1983 | STL | 38 | -2.55 | #281 | #39,765 |
| 1984★ | STL | 50 | -0.03 | #157 | #18,604 |
| 1985 | PHI | 39 | -1.99 | #252 | #31,407 |
| 1986 | PHI | 19 | -3.36 | #391 | #47,590 |
| 1988 | PIT | 31 | -2.94 | #380 | #44,526 |
★ Best season by Z