P · 4 seasons · 1975 – 1978 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1975 | DET | 13 | -2.32 | #470 | #89,491 |
| 1976 | HOU | 40 | -2.32 | #465 | #89,787 |
| 1977 | HOU | 41 | -2.73 | #850 | #105,236 |
| 1978★ | HOU | 10 | -2.31 | #711 | #88,591 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1975 | DET | 13 | -2.59 | #259 | #40,342 |
| 1976 | HOU | 40 | -0.36 | #135 | #20,086 |
| 1977★ | HOU | 41 | -0.22 | #156 | #19,371 |
| 1978 | HOU | 10 | -2.96 | #313 | #44,689 |
★ Best season by Z