P · 10 seasons · 1973 – 1983 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1973 | BAL | 8 | -2.31 | #459 | #88,839 |
| 1974★ | BAL | 25 | -2.21 | #456 | #78,233 |
| 1975 | CLE | 35 | -2.28 | #447 | #86,099 |
| 1976 | CLE | 34 | -2.33 | #467 | #90,231 |
| 1977 | CLE | 42 | -2.33 | #487 | #90,441 |
| 1978 | CLE | 36 | -2.28 | #483 | #85,289 |
| 1979 | NYY | 40 | -2.29 | #466 | #87,086 |
| 1980 | STL | 35 | -2.30 | #717 | #87,870 |
| 1982 | KC | 30 | -2.23 | #491 | #80,397 |
| 1983 | KC | 27 | -2.26 | #494 | #83,792 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1973 | BAL | 8 | -1.26 | #159 | #24,966 |
| 1974 | BAL | 20 | -0.88 | #153 | #22,689 |
| 1975 | CLE | 29 | -1.79 | #198 | #29,091 |
| 1976 | CLE | 33 | -3.68 | #301 | #48,981 |
| 1977★ | CLE | 41 | 0.27 | #132 | #17,254 |
| 1978 | CLE | 36 | -3.07 | #323 | #45,654 |
| 1979 | NYY | 40 | 0.09 | #153 | #18,005 |
| 1980 | STL | 33 | -1.40 | #209 | #25,906 |
| 1982 | KC | 30 | -1.05 | #185 | #23,638 |
| 1983 | KC | 27 | -1.00 | #192 | #23,367 |
★ Best season by Z