P · 13 seasons · 1978 – 1990 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1978 | TEX | 10 | -2.28 | #483 | #85,287 |
| 1979 | NYY | 10 | -2.29 | #466 | #87,086 |
| 1980 | TOR | 33 | -2.29 | #501 | #86,677 |
| 1981 | TOR | 8 | -2.26 | #504 | #83,102 |
| 1982 | TEX | 40 | -2.23 | #491 | #80,396 |
| 1983 | BAL | 3 | -2.26 | #494 | #83,790 |
| 1984 | SEA | 52 | -2.28 | #520 | #85,716 |
| 1985 | SEA | 10 | -2.24 | #482 | #81,336 |
| 1986 | SEA | 8 | -2.31 | #503 | #89,035 |
| 1987 | ML4 | 29 | -2.28 | #490 | #85,050 |
| 1988 | ML4 | 38 | -2.22 | #479 | #78,807 |
| 1989 | ML4 | 13 | -2.25 | #520 | #82,565 |
| 1990★ | ML4 | 44 | -2.19 | #504 | #75,986 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1978 | TEX | 10 | -2.37 | #243 | #37,080 |
| 1979 | NYY | 10 | -3.47 | #361 | #48,126 |
| 1980 | TOR | 33 | -3.20 | #331 | #46,577 |
| 1981 | TOR | 8 | -3.66 | #334 | #48,910 |
| 1982 | TEX | 40 | -1.84 | #218 | #29,654 |
| 1983 | BAL | 3 | -2.90 | #324 | #44,181 |
| 1984 | SEA | 52 | -2.09 | #246 | #32,843 |
| 1985 | SEA | 10 | -1.74 | #239 | #28,646 |
| 1986 | SEA | 8 | -3.03 | #367 | #45,302 |
| 1987 | ML4 | 29 | -1.97 | #251 | #31,195 |
| 1988★ | ML4 | 38 | 1.40 | #117 | #13,334 |
| 1989 | ML4 | 13 | -3.09 | #394 | #45,767 |
| 1990 | ML4 | 44 | -1.74 | #279 | #28,596 |
★ Best season by Z