P · 9 seasons · 1966 – 1977 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1966★ | PIT | 2 | -2.19 | #398 | #75,826 |
| 1967 | PIT | 6 | -2.21 | #451 | #78,729 |
| 1969 | WS2 | 38 | -2.27 | #648 | #84,719 |
| 1970 | WS2 | 40 | -2.65 | #777 | #103,776 |
| 1971 | WS2 | 40 | -2.40 | #634 | #95,122 |
| 1972 | TEX | 22 | -2.30 | #594 | #87,903 |
| 1973 | TEX | 2 | -2.31 | #459 | #88,838 |
| 1974 | TEX | 11 | -2.25 | #476 | #81,775 |
| 1977 | MIN | 5 | -2.33 | #487 | #90,439 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1966 | PIT | 2 | -2.78 | #261 | #42,839 |
| 1967 | PIT | 6 | -2.33 | #209 | #36,417 |
| 1969 | WS2 | 38 | -1.73 | #199 | #28,502 |
| 1970★ | WS2 | 39 | -0.10 | #143 | #18,837 |
| 1971 | WS2 | 40 | -1.93 | #217 | #30,677 |
| 1972 | TEX | 22 | -1.01 | #163 | #23,458 |
| 1973 | TEX | 2 | -2.32 | #220 | #36,305 |
| 1974 | TEX | 11 | -3.08 | #312 | #45,679 |
| 1977 | MIN | 5 | -3.11 | #313 | #45,915 |
★ Best season by Z