P · 9 seasons · 1965 – 1977 · B/T: R/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1965★ | LAD | 5 | -2.26 | #481 | #83,314 |
| 1968 | LAD | 25 | -2.71 | #622 | #104,843 |
| 1969 | NYY | 28 | -2.54 | #759 | #100,781 |
| 1970 | NYY | 26 | -2.64 | #770 | #103,418 |
| 1971 | NYY | 37 | -2.59 | #736 | #102,260 |
| 1972 | NYY | 29 | -2.64 | #761 | #103,588 |
| 1973 | CLE | 24 | -2.28 | #437 | #85,625 |
| 1975 | TEX | 23 | -2.32 | #470 | #89,490 |
| 1977 | SEA | 41 | -2.33 | #487 | #90,439 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1965 | LAD | 5 | -3.38 | #280 | #47,678 |
| 1968 | LAD | 25 | -3.22 | #261 | #46,732 |
| 1969★ | NYY | 28 | -1.39 | #182 | #25,863 |
| 1970 | NYY | 26 | -2.50 | #260 | #39,013 |
| 1971 | NYY | 37 | -1.40 | #178 | #25,896 |
| 1972 | NYY | 29 | -1.40 | #178 | #25,908 |
| 1973 | CLE | 21 | -6.24 | #328 | #51,129 |
| 1975 | TEX | 23 | -2.23 | #227 | #34,966 |
| 1977 | SEA | 41 | -2.17 | #227 | #33,986 |
★ Best season by Z