P · 7 seasons · 1982 – 1990 · B/T: B/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1982 | MIN | 5 | -2.23 | #491 | #80,396 |
| 1983 | MIN | 26 | -2.26 | #494 | #83,790 |
| 1984 | MIN | 55 | -2.28 | #520 | #85,716 |
| 1985 | MIN | 40 | -2.24 | #482 | #81,336 |
| 1986 | MIN | 7 | -2.31 | #503 | #89,035 |
| 1987 | NYY | 7 | -2.28 | #490 | #85,050 |
| 1990★ | KC | 8 | -2.19 | #504 | #75,986 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1982 | MIN | 5 | -3.54 | #346 | #48,472 |
| 1983★ | MIN | 26 | 0.06 | #157 | #18,143 |
| 1984 | MIN | 55 | -0.45 | #169 | #20,473 |
| 1985 | MIN | 40 | -0.06 | #158 | #18,700 |
| 1986 | CWS | 7 | -3.17 | #377 | #46,385 |
| 1987 | NYY | 7 | -2.14 | #264 | #33,685 |
| 1990 | KC | 8 | -3.34 | #446 | #47,458 |
★ Best season by Z