P · 6 seasons · 1970 – 1975 · B/T: L/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1970 | WS2 | 8 | -2.42 | #696 | #96,243 |
| 1971 | WS2 | 27 | -2.42 | #646 | #95,737 |
| 1972 | TEX | 36 | -2.59 | #748 | #102,262 |
| 1973 | TEX | 49 | -2.31 | #459 | #88,838 |
| 1974★ | CLE | 5 | -2.25 | #476 | #81,775 |
| 1975 | CWS | 19 | -2.32 | #470 | #89,490 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1970 | WS2 | 8 | -2.74 | #282 | #42,360 |
| 1971★ | WS2 | 27 | 1.09 | #99 | #14,317 |
| 1972 | TEX | 36 | -1.34 | #172 | #25,476 |
| 1973 | TEX | 49 | -0.95 | #151 | #23,067 |
| 1974 | CLE | 5 | -2.38 | #242 | #37,209 |
| 1975 | CWS | 19 | -2.80 | #278 | #43,069 |
★ Best season by Z