P · 5 seasons · 1986 – 1990 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1986 | TEX | 58 | -2.31 | #503 | #89,036 |
| 1987 | TEX | 74 | -2.28 | #490 | #85,052 |
| 1988★ | TEX | 56 | -2.22 | #479 | #78,807 |
| 1989 | NYY | 32 | -2.25 | #520 | #82,566 |
| 1990 | MON | 34 | -2.33 | #892 | #90,722 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1986 | TEX | 58 | 1.03 | #128 | #14,501 |
| 1987★ | TEX | 74 | 5.64 | #39 | #4,561 |
| 1988 | TEX | 56 | -0.99 | #197 | #23,336 |
| 1989 | NYY | 32 | -2.29 | #300 | #35,866 |
| 1990 | MON | 34 | -0.94 | #221 | #23,030 |
★ Best season by Z