P · 14 seasons · 1970 – 1983 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1970 | CAL | 38 | -2.24 | #541 | #81,146 |
| 1971 | CAL | 56 | -2.48 | #697 | #98,999 |
| 1972 | MIN | 62 | -2.33 | #627 | #90,756 |
| 1973 | CHC | 45 | -2.16 | #404 | #73,839 |
| 1974★ | CHC | 50 | -1.76 | #364 | #45,860 |
| 1975 | CLE | 61 | -2.32 | #470 | #89,491 |
| 1976 | CLE | 61 | -2.33 | #467 | #90,231 |
| 1977 | CAL | 59 | -2.33 | #487 | #90,441 |
| 1978 | CAL | 59 | -2.28 | #483 | #85,289 |
| 1979 | CAL | 53 | -2.29 | #466 | #87,086 |
| 1980 | CAL | 53 | -2.29 | #501 | #86,677 |
| 1981 | NYY | 26 | -2.26 | #504 | #83,103 |
| 1982 | NYY | 25 | -2.23 | #491 | #80,397 |
| 1983 | NYY | 1 | -2.26 | #494 | #83,792 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1970 | CAL | 38 | 0.24 | #133 | #17,385 |
| 1971 | CAL | 56 | 2.64 | #72 | #9,883 |
| 1972 | MIN | 62 | 2.64 | #65 | #9,874 |
| 1973 | CHC | 45 | -1.94 | #193 | #30,759 |
| 1974 | CHC | 49 | -1.60 | #186 | #27,394 |
| 1975 | CLE | 61 | 5.07 | #31 | #5,358 |
| 1976★ | CLE | 61 | 6.56 | #25 | #3,526 |
| 1977 | CAL | 59 | 4.76 | #40 | #5,818 |
| 1978 | CAL | 59 | 6.53 | #27 | #3,557 |
| 1979 | CAL | 53 | -0.41 | #165 | #20,297 |
| 1980 | CAL | 52 | 0.95 | #124 | #14,819 |
| 1981 | NYY | 26 | 0.42 | #127 | #16,665 |
| 1982 | NYY | 25 | -0.95 | #180 | #23,039 |
| 1983 | NYY | 1 | -2.83 | #316 | #43,481 |
★ Best season by Z