P · 12 seasons · 1988 – 1999 · B/T: L/L
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1988 | TEX | 5 | -2.22 | #479 | #78,807 |
| 1989 | ML4 | 51 | -2.25 | #520 | #82,565 |
| 1990 | ML4 | 32 | -2.19 | #504 | #75,986 |
| 1991 | BOS | 64 | -2.14 | #497 | #70,859 |
| 1992 | BOS | 60 | -2.19 | #525 | #76,350 |
| 1993 | BOS | 71 | -2.18 | #553 | #74,941 |
| 1994 | BOS | 44 | -2.25 | #508 | #82,255 |
| 1995 | STL | 58 | -2.13 | #547 | #69,821 |
| 1996 | STL | 65 | -2.15 | #884 | #72,111 |
| 1997 | STL | 71 | -2.16 | #573 | #73,573 |
| 1998★ | SEA | 41 | -2.13 | #590 | #69,589 |
| 1999 | NYY | 5 | -2.15 | #602 | #71,790 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 1988 | TEX | 5 | -2.70 | #362 | #41,897 |
| 1989 | ML4 | 51 | -0.76 | #189 | #21,992 |
| 1990 | ML4 | 32 | -3.06 | #426 | #45,532 |
| 1991 | BOS | 64 | -0.74 | #201 | #21,891 |
| 1992 | BOS | 60 | -1.49 | #242 | #26,518 |
| 1993 | BOS | 71 | -1.55 | #277 | #26,966 |
| 1994 | BOS | 44 | -1.00 | #224 | #23,380 |
| 1995★ | STL | 58 | 1.36 | #146 | #13,446 |
| 1996 | STL | 65 | -0.31 | #217 | #19,845 |
| 1997 | STL | 71 | -1.57 | #284 | #27,158 |
| 1998 | SEA | 41 | -2.69 | #457 | #41,756 |
| 1999 | NYY | 5 | -2.82 | #504 | #43,326 |
★ Best season by Z