P · 8 seasons · 1984 – 1996 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | OAK | 8 | -2.28 | #520 | #85,716 |
| 1986 | OAK | 33 | -2.31 | #503 | #89,035 |
| 1987 | OAK | 57 | -2.28 | #490 | #85,050 |
| 1988★ | SD | 35 | -2.12 | #447 | #66,505 |
| 1989 | SD | 22 | -2.28 | #784 | #86,186 |
| 1994 | OAK | 26 | -2.25 | #508 | #82,255 |
| 1995 | MON | 50 | -2.17 | #877 | #74,319 |
| 1996 | PHI | 33 | -2.12 | #560 | #66,650 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | OAK | 8 | -3.14 | #336 | #46,182 |
| 1986 | OAK | 33 | -2.07 | #247 | #32,647 |
| 1987 | OAK | 57 | -0.12 | #175 | #18,950 |
| 1988★ | SD | 35 | 0.60 | #142 | #16,002 |
| 1989 | SD | 22 | -3.77 | #429 | #49,244 |
| 1994 | OAK | 26 | -0.86 | #221 | #22,563 |
| 1995 | OAK | 50 | -0.26 | #209 | #19,591 |
| 1996 | PHI | 33 | -2.82 | #456 | #43,329 |
★ Best season by Z