| 1975 | Boston | AL | MLB | 24 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | 1.000 | -- | -- | -- | -- | -- | -- | 5 | 4 | 0 |
| 1976 | Boston | AL | MLB | 25 | 0 | 0 | 0 | 17 | 18 | 12 | 0 | 0 | 0 | 0 | 7 | -- | -- | -- | .976 | .918 | .875 | -- | -- | -- | -- | 58 | 102 | 11 |
| 1977 | Boston | AL | MLB | 26 | 0 | 0 | 0 | 45 | 0 | 9 | 0 | 0 | 0 | 0 | 6 | -- | -- | -- | .967 | -- | 1.000 | -- | -- | -- | -- | 90 | 122 | 6 |
| 1978 | Detroit | AL | MLB | 27 | 0 | 0 | 0 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | -- | -- | -- | .958 | -- | -- | -- | -- | -- | -- | 88 | 118 | 9 |
| 1979 | Chi Cubs | NL | MLB | 28 | 0 | 0 | 0 | 60 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .988 | .900 | -- | -- | -- | -- | -- | 114 | 138 | 4 |
| 1980 | Chi Cubs | NL | MLB | 29 | 0 | 0 | 0 | 38 | 51 | 2 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .980 | .908 | 1.000 | -- | -- | -- | -- | 92 | 171 | 14 |
| 1981 | Chi Cubs | NL | MLB | 30 | 0 | 0 | 0 | 32 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .974 | .600 | 1.000 | -- | -- | -- | -- | 59 | 96 | 6 |
| 1982 | Edmonton | PCL | AAA | 31 | 0 | 0 | 6 | 39 | 43 | 33 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | .976 | .905 | .942 | -- | -- | -- | -- | 232 | 302 | 27 |
| | Chi White Sox | AL | MLB | 31 | 0 | 0 | 0 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | .959 | -- | -- | -- | -- | -- | -- | 29 | 42 | 3 |
Minor League Totals | 0 | 0 | 6 | 39 | 43 | 33 | 0 | 0 | 0 | 0 | 0 | -- | -- | 1.000 | .976 | .905 | .942 | -- | -- | -- | -- | 232 | 302 | 27 |