| 1965 | Philadelphia | NL | MLB | 21 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 1 | 0 |
| 1966 | Chi Cubs | NL | MLB | 22 | 60 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .909 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 11 | 19 | 3 |
| | Philadelphia | NL | MLB | 22 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0 | 0 | 0 |
| 1967 | Chi Cubs | NL | MLB | 23 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .972 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 20 | 49 | 2 |
| 1968 | Chi Cubs | NL | MLB | 24 | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 14 | 41 | 0 |
| 1969 | Chi Cubs | NL | MLB | 25 | 43 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .938 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 14 | 47 | 4 |
| 1970 | Chi Cubs | NL | MLB | 26 | 40 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .930 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 14 | 39 | 4 |
| 1971 | Chi Cubs | NL | MLB | 27 | 39 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .919 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 31 | 48 | 7 |
| 1972 | Chi Cubs | NL | MLB | 28 | 36 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .975 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 28 | 50 | 2 |
| 1973 | Chi Cubs | NL | MLB | 29 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .949 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 21 | 53 | 4 |
| 1974 | Texas | AL | MLB | 30 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .942 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 24 | 41 | 4 |
| 1975 | Texas | AL | MLB | 31 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .930 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 27 | 39 | 5 |
| 1976 | Boston | AL | MLB | 32 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 13 | 23 | 0 |
| 1977 | Boston | AL | MLB | 33 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .931 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 24 | 30 | 4 |
| 1978 | Texas | AL | MLB | 34 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .985 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 29 | 37 | 1 |
| 1979 | Texas | AL | MLB | 35 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .962 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 25 | 50 | 3 |
| 1980 | Texas | AL | MLB | 36 | 29 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .959 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 24 | 23 | 2 |
| 1981 | Texas | AL | MLB | 37 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 10 | 22 | 0 |
| 1982 | Chi Cubs | NL | MLB | 38 | 34 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .923 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 18 | 30 | 4 |
| 1983 | Chi Cubs | NL | MLB | 39 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.000 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 16 | 18 | 0 |