P · 6 seasons · 1979 – 1986 · B/T: R/R
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1979 | HOU | 26 | -2.36 | #716 | #92,545 |
| 1980 | HOU | 14 | -2.39 | #779 | #94,210 |
| 1982★ | HOU | 22 | -2.27 | #719 | #84,501 |
| 1984 | CWS | 21 | -2.28 | #520 | #85,716 |
| 1985 | MON | 42 | -2.28 | #734 | #84,991 |
| 1986 | MON | 21 | -2.38 | #772 | #93,726 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1979★ | HOU | 26 | 0.15 | #150 | #17,750 |
| 1980 | HOU | 14 | -2.62 | #271 | #40,823 |
| 1982 | HOU | 22 | -1.73 | #211 | #28,481 |
| 1984 | CWS | 21 | -1.30 | #203 | #25,220 |
| 1985 | MON | 42 | -0.05 | #157 | #18,673 |
| 1986 | MON | 21 | -2.81 | #345 | #43,266 |
★ Best season by Z