P · 6 seasons · 1979 – 1989 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1979 | NYY | 3 | -2.29 | #466 | #87,086 |
| 1980 | NYY | 13 | -2.29 | #501 | #86,677 |
| 1981 | CHC | 18 | -2.48 | #815 | #98,672 |
| 1982 | SD | 7 | -2.27 | #719 | #84,501 |
| 1987 | BAL | 23 | -2.28 | #490 | #85,050 |
| 1989★ | CIN | 3 | -2.16 | #463 | #73,093 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1979 | NYY | 3 | -2.32 | #255 | #36,288 |
| 1980 | NYY | 13 | -2.95 | #305 | #44,593 |
| 1981 | CHC | 18 | -1.91 | #231 | #30,440 |
| 1982 | SD | 7 | -2.49 | #272 | #38,939 |
| 1987★ | BAL | 23 | -1.41 | #220 | #25,970 |
| 1989 | CIN | 3 | -3.10 | #396 | #45,831 |
★ Best season by Z