G · 14 seasons · 1976-77 – 1989-90
| Season ↑ | Tm | GP | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1976-77 | HOU | 82 | 4.33 | #47 | #3,792 |
| 1977-78 | HOU | 82 | 4.32 | #28 | #3,799 |
| 1978-79★ | GOS | 82 | 4.90 | #23 | #3,253 |
| 1979-80 | GOS | 80 | 3.52 | #55 | #4,727 |
| 1980-81 | GOS | 66 | -0.50 | #139 | #11,346 |
| 1981-82 | WAS | 79 | 0.65 | #111 | #9,192 |
| 1982-83 | WAS | 35 | -3.99 | #264 | #20,376 |
| 1983-84 | SAN | 63 | 4.02 | #51 | #4,134 |
| 1984-85 | HOU | 47 | 0.61 | #117 | #9,254 |
| 1985-86 | HOU | 65 | 4.34 | #47 | #3,776 |
| 1986-87 | MIL | 43 | 2.49 | #79 | #6,101 |
| 1987-88 | MIL | 81 | 2.68 | #73 | #5,813 |
| 1988-89 | SEA | 74 | -1.85 | #199 | #14,152 |
| 1989-90 | HOU | 49 | -1.98 | #218 | #14,458 |
★ Best season by Z (season totals)