P · 6 seasons · 1957 – 1962 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1957 | PIT | 1 | -2.30 | #330 | #87,745 |
| 1958 | PIT | 18 | -2.49 | #504 | #99,182 |
| 1959 | PIT | 15 | -2.58 | #509 | #102,092 |
| 1960 | PIT | 10 | -2.53 | #497 | #100,516 |
| 1961 | PIT | 9 | -2.22 | #345 | #79,303 |
| 1962★ | HOU | 13 | -2.18 | #372 | #75,348 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1957 | PIT | 1 | -3.44 | #227 | #47,999 |
| 1958★ | PIT | 18 | 3.89 | #37 | #7,327 |
| 1959 | PIT | 15 | -4.58 | #241 | #50,538 |
| 1960 | PIT | 10 | -2.44 | #163 | #38,168 |
| 1961 | PIT | 9 | -2.87 | #201 | #43,881 |
| 1962 | HOU | 13 | -3.65 | #286 | #48,871 |
★ Best season by Z