P · 11 seasons · 1984 – 1996 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | SEA | 3 | -2.28 | #520 | #85,717 |
| 1986 | SEA | 41 | -2.31 | #503 | #89,036 |
| 1987 | SEA | 25 | -2.28 | #490 | #85,052 |
| 1988 | NYY | 20 | -2.22 | #479 | #78,807 |
| 1989 | NYY | 70 | -2.25 | #520 | #82,566 |
| 1990 | NYY | 64 | -2.19 | #504 | #75,986 |
| 1991 | NYY | 64 | -2.14 | #497 | #70,857 |
| 1992 | NYM | 58 | -2.26 | #811 | #83,084 |
| 1993★ | STL | 40 | -2.08 | #506 | #62,653 |
| 1995 | SEA | 23 | -2.13 | #547 | #69,819 |
| 1996 | SEA | 17 | -2.12 | #560 | #66,648 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1984 | SEA | 3 | -2.87 | #315 | #43,813 |
| 1986 | SEA | 41 | -6.04 | #415 | #51,105 |
| 1987 | SEA | 25 | 1.39 | #127 | #13,350 |
| 1988 | NYY | 20 | -2.79 | #366 | #42,998 |
| 1989★ | NYY | 70 | 3.56 | #79 | #7,944 |
| 1990 | NYY | 64 | 2.95 | #92 | #9,159 |
| 1991 | NYY | 64 | 0.21 | #162 | #17,520 |
| 1992 | NYM | 58 | -4.84 | #436 | #50,751 |
| 1993 | STL | 40 | -0.22 | #186 | #19,357 |
| 1995 | SEA | 23 | -2.68 | #462 | #41,570 |
| 1996 | SEA | 17 | -2.38 | #398 | #37,238 |
★ Best season by Z