P · 5 seasons · 1973 – 1977 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1973 | PHI | 20 | -2.43 | #687 | #96,745 |
| 1974★ | NYY | 31 | -2.25 | #476 | #81,775 |
| 1975 | STL | 12 | -2.32 | #470 | #89,490 |
| 1976 | STL | 49 | -2.26 | #436 | #84,196 |
| 1977 | TEX | 5 | -2.33 | #487 | #90,439 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1973 | PHI | 20 | -2.19 | #208 | #34,386 |
| 1974★ | NYY | 31 | -0.54 | #141 | #20,918 |
| 1975 | STL | 12 | -3.08 | #299 | #45,722 |
| 1976 | STL | 49 | -2.11 | #200 | #33,221 |
| 1977 | TEX | 5 | -3.25 | #324 | #46,963 |
★ Best season by Z