P · 11 seasons · 1977 – 1987 · B/T: R/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1977 | SD | 39 | -3.32 | #894 | #110,270 |
| 1978 | SD | 50 | -2.76 | #859 | #105,791 |
| 1979 | SD | 49 | -3.44 | #896 | #110,602 |
| 1980 | SD | 59 | -2.99 | #892 | #108,419 |
| 1981 | STL | 28 | -2.63 | #857 | #103,382 |
| 1982 | CIN | 41 | -2.79 | #886 | #106,269 |
| 1983 | NYY | 25 | -2.26 | #494 | #83,790 |
| 1984 | NYY | 41 | -2.28 | #520 | #85,716 |
| 1985★ | NYY | 48 | -2.24 | #482 | #81,336 |
| 1986 | NYY | 39 | -2.31 | #503 | #89,035 |
| 1987 | NYY | 15 | -2.28 | #490 | #85,050 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1977 | SD | 39 | 2.01 | #86 | #11,540 |
| 1978 | SD | 50 | 1.77 | #89 | #12,248 |
| 1979★ | SD | 49 | 4.14 | #60 | #6,859 |
| 1980 | SD | 59 | 1.99 | #103 | #11,579 |
| 1981 | STL | 28 | -0.69 | #166 | #21,658 |
| 1982 | CIN | 41 | 0.83 | #126 | #15,189 |
| 1983 | NYY | 25 | -2.57 | #283 | #40,070 |
| 1984 | NYY | 41 | -0.72 | #177 | #21,774 |
| 1985 | NYY | 48 | 2.01 | #96 | #11,545 |
| 1986 | NYY | 39 | -2.18 | #260 | #34,259 |
| 1987 | NYY | 15 | -3.50 | #395 | #48,281 |
★ Best season by Z