P · 8 seasons · 1981 – 1990 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1981 | SEA | 30 | -2.26 | #504 | #83,102 |
| 1982 | SEA | 37 | -2.23 | #491 | #80,396 |
| 1983 | SEA | 41 | -2.26 | #494 | #83,790 |
| 1984 | TOR | 20 | -2.28 | #520 | #85,716 |
| 1985 | CLE | 31 | -2.24 | #482 | #81,336 |
| 1986 | CWS | 5 | -2.31 | #503 | #89,035 |
| 1987 | CWS | 11 | -2.28 | #490 | #85,050 |
| 1990★ | SEA | 12 | -2.19 | #504 | #75,986 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1981 | SEA | 29 | -2.57 | #276 | #40,004 |
| 1982★ | SEA | 37 | 0.60 | #132 | #15,993 |
| 1983 | SEA | 41 | -0.51 | #180 | #20,763 |
| 1984 | TOR | 20 | -4.41 | #385 | #50,352 |
| 1985 | CLE | 31 | -3.80 | #397 | #49,302 |
| 1986 | CWS | 5 | -2.39 | #290 | #37,490 |
| 1987 | CWS | 11 | -2.07 | #258 | #32,649 |
| 1990 | SEA | 12 | -1.97 | #297 | #31,248 |
★ Best season by Z