P · 15 seasons · 1983 – 1997 · B/T: R/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1983 | KC | 4 | -2.26 | #494 | #83,790 |
| 1984 | KC | 15 | -2.28 | #520 | #85,716 |
| 1985 | KC | 32 | -2.24 | #482 | #81,336 |
| 1986 | KC | 32 | -2.31 | #503 | #89,035 |
| 1987 | KC | 36 | -2.28 | #490 | #85,050 |
| 1988 | CIN | 35 | -2.81 | #938 | #106,469 |
| 1989 | CIN | 21 | -2.08 | #446 | #62,609 |
| 1990 | CIN | 23 | -3.17 | #1,016 | #109,686 |
| 1991 | CHC | 17 | -2.56 | #983 | #101,454 |
| 1992 | CHC | 34 | -3.39 | #1,000 | #110,502 |
| 1993 | PHI | 32 | -3.56 | #1,101 | #110,862 |
| 1994 | PHI | 26 | -2.79 | #951 | #106,248 |
| 1995 | STL | 19 | -2.47 | #1,055 | #98,385 |
| 1996★ | STL | 13 | -1.89 | #471 | #48,319 |
| 1997 | SD | 17 | -2.57 | #1,057 | #101,712 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1983 | KC | 4 | -2.88 | #318 | #43,958 |
| 1984 | KC | 15 | -2.66 | #297 | #41,386 |
| 1985 | KC | 32 | 3.17 | #74 | #8,693 |
| 1986 | KC | 32 | 3.20 | #67 | #8,629 |
| 1987 | KC | 36 | 1.93 | #114 | #11,755 |
| 1988★ | CIN | 35 | 11.62 | #4 | #620 |
| 1989 | CIN | 20 | -3.39 | #414 | #47,755 |
| 1990 | CIN | 22 | 0.84 | #144 | #15,158 |
| 1991 | CHC | 17 | -5.95 | #475 | #51,098 |
| 1992 | CHC | 34 | -0.10 | #176 | #18,858 |
| 1993 | PHI | 32 | 3.44 | #79 | #8,187 |
| 1994 | PHI | 25 | 8.96 | #10 | #1,634 |
| 1995 | STL | 19 | -3.51 | #524 | #48,312 |
| 1996 | STL | 13 | -1.32 | #272 | #25,357 |
| 1997 | SD | 17 | -4.66 | #532 | #50,619 |
★ Best season by Z