| 1981 | GCL Padres | GCL | Rk | 17 | 0 | 0 | 0 | 19 | 0 | 32 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .989 | -- | .914 | -- | -- | -- | -- | 105 | 135 | 15 |
| 1982 | Reno | Calif | A+ | 18 | 0 | 0 | 0 | 0 | 0 | 129 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .940 | -- | -- | -- | -- | 240 | 399 | 41 |
| 1983 | Beaumont | Tex | AA | 19 | 0 | 0 | 0 | 0 | 0 | 114 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .931 | -- | -- | -- | -- | 185 | 327 | 38 |
| 1984 | Las Vegas | PCL | AAA | 20 | 0 | 0 | 0 | 3 | 0 | 114 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | -- | .969 | -- | -- | -- | -- | 172 | 364 | 17 |
| 1985 | Chi White Sox | AL | MLB | 21 | 0 | 0 | 0 | 0 | 0 | 150 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .980 | -- | -- | -- | -- | 220 | 382 | 12 |
| 1986 | Chi White Sox | AL | MLB | 22 | 0 | 0 | 0 | 0 | 0 | 157 | 0 | 0 | 0 | 0 | 1 | -- | -- | -- | -- | -- | .970 | -- | -- | -- | -- | 261 | 459 | 22 |
| 1987 | Chi White Sox | AL | MLB | 23 | 0 | 0 | 0 | 0 | 0 | 149 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .975 | -- | -- | -- | -- | 266 | 475 | 19 |
| 1988 | Chi White Sox | AL | MLB | 24 | 0 | 0 | 0 | 0 | 0 | 156 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .977 | -- | -- | -- | -- | 273 | 570 | 20 |
| 1989 | Chi White Sox | AL | MLB | 25 | 0 | 0 | 0 | 0 | 0 | 155 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .973 | -- | -- | -- | -- | 272 | 512 | 22 |
| 1990 | Chi White Sox | AL | MLB | 26 | 0 | 0 | 0 | 0 | 0 | 159 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .977 | -- | -- | -- | -- | 252 | 474 | 17 |
| 1991 | Chi White Sox | AL | MLB | 27 | 0 | 0 | 0 | 0 | 0 | 149 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .970 | -- | -- | -- | -- | 249 | 439 | 21 |
| 1992 | Chi White Sox | AL | MLB | 28 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | 1.000 | -- | -- | -- | -- | 20 | 39 | 0 |
| 1993 | Chi White Sox | AL | MLB | 29 | 0 | 0 | 0 | 0 | 0 | 133 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .972 | -- | -- | -- | -- | 189 | 361 | 16 |
| 1994 | Chi White Sox | AL | MLB | 30 | 0 | 0 | 0 | 0 | 0 | 99 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .959 | -- | -- | -- | -- | 139 | 237 | 16 |
| 1995 | Chi White Sox | AL | MLB | 31 | 0 | 0 | 0 | 0 | 0 | 120 | 0 | 0 | 0 | 0 | 1 | -- | -- | -- | -- | -- | .976 | -- | -- | -- | -- | 167 | 318 | 12 |
| 1996 | Chi White Sox | AL | MLB | 32 | 0 | 0 | 0 | 0 | 0 | 146 | 2 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .981 | 1.000 | -- | -- | -- | 222 | 348 | 11 |
| 1997 | Chi White Sox | AL | MLB | 33 | 0 | 0 | 0 | 0 | 0 | 139 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .974 | -- | -- | -- | -- | 207 | 348 | 15 |
| 1998 | Baltimore | AL | MLB | 34 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | .933 | -- | -- | -- | -- | 3 | 11 | 1 |
| | Atlanta | NL | MLB | 34 | 0 | 0 | 1 | 2 | 1 | 71 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | 1.000 | 1.000 | .977 | -- | -- | -- | -- | 97 | 166 | 6 |
| 1999 | Atlanta | NL | MLB | 35 | 0 | 0 | 0 | 1 | 6 | 53 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | 1.000 | .965 | -- | -- | -- | -- | 58 | 146 | 7 |
| 2000 | Tampa Bay | AL | MLB | 36 | 0 | 0 | 5 | 2 | 11 | 42 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | 1.000 | 1.000 | .948 | -- | -- | -- | -- | 40 | 90 | 5 |
Minor League Totals | 0 | 0 | 0 | 22 | 0 | 389 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .990 | -- | .943 | -- | -- | -- | -- | 702 | 1225 | 111 |