P · 7 seasons · 1983 – 1989 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1983 | HOU | 4 | -2.26 | #494 | #83,790 |
| 1984 | HOU | 31 | -2.22 | #494 | #79,086 |
| 1985 | HOU | 20 | -2.31 | #757 | #88,327 |
| 1986 | HOU | 16 | -2.50 | #850 | #99,695 |
| 1987 | HOU | 11 | -2.34 | #783 | #91,345 |
| 1988★ | SEA | 17 | -2.22 | #479 | #78,807 |
| 1989 | SEA | 7 | -2.25 | #520 | #82,565 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1983 | HOU | 4 | -2.77 | #308 | #42,767 |
| 1984★ | HOU | 31 | 0.25 | #150 | #17,322 |
| 1985 | HOU | 20 | -1.71 | #236 | #28,358 |
| 1986 | HOU | 16 | -3.52 | #396 | #48,397 |
| 1987 | HOU | 11 | -3.32 | #383 | #47,344 |
| 1988 | SEA | 17 | -2.05 | #265 | #32,343 |
| 1989 | SEA | 7 | -2.25 | #291 | #35,272 |
★ Best season by Z