| year | team | league | level | age | pos | g | gs | inn | po | a | e | dp | tc | tsc | sb | cs | sb% | fpct | rfg | rfi | rf9i | tm share | pl share | tm rank |
| 1969 | California Angels | AL | MLB | 22 | P | 22 | 0 | 41.0 | 5 | 4 | 2 | 0 | 11 | 9 | 0 | 0 | .818 | 0.4 | 0.22 | 1.98 | 13.6 | 100.0 | 10 | |
| 1970 | Cincinnati Reds | NL | MLB | 23 | P | 12 | 0 | 17.0 | 2 | 11 | 0 | 1 | 13 | 13 | 0 | 0 | 1.000 | 1.1 | 0.76 | 6.84 | 7.4 | 100.0 | 10 | |
| 1971 | Cincinnati Reds | NL | MLB | 24 | P | 3 | 0 | 4.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | 0.0 | 0.00 | 0.00 | 1.9 | 100.0 | 13 | |
| 1972 | Cincinnati Reds | NL | MLB | 25 | P | 62 | 0 | 122.0 | 2 | 20 | 3 | 0 | 25 | 22 | 3 | 1 | 0.75 | .880 | 0.4 | 0.18 | 1.62 | 40.3 | 100.0 | 2 |
| 1973 | Cincinnati Reds | NL | MLB | 26 | P | 80 | 0 | 121.0 | 9 | 19 | 3 | 1 | 31 | 28 | 4 | 3 | 0.5714 | .903 | 0.4 | 0.23 | 2.07 | 49.4 | 100.0 | 1 |
| 1974 | Cincinnati Reds | NL | MLB | 27 | P | 73 | 0 | 139.0 | 7 | 19 | 2 | 2 | 28 | 26 | 0 | 0 | .929 | 0.4 | 0.19 | 1.71 | 45.1 | 100.0 | 1 | |
| 1975 | Cincinnati Reds | NL | MLB | 28 | P | 67 | 0 | 125.0 | 6 | 19 | 1 | 1 | 26 | 25 | 2 | 1 | 0.6667 | .962 | 0.4 | 0.20 | 1.80 | 41.4 | 100.0 | 2 |
| 1976 | Cincinnati Reds | NL | MLB | 29 | P | 69 | 1 | 121.0 | 6 | 18 | 0 | 0 | 24 | 24 | 6 | 5 | 0.5455 | 1.000 | 0.3 | 0.20 | 1.80 | 42.6 | 100.0 | 2 |
| 1977 | Cincinnati Reds | NL | MLB | 30 | P | 73 | 0 | 127.0 | 4 | 14 | 2 | 1 | 20 | 18 | 3 | 3 | 0.5 | .900 | 0.2 | 0.14 | 1.26 | 45.1 | 100.0 | 1 |
| 1978 | Cincinnati Reds | NL | MLB | 31 | P | 62 | 0 | 99.1 | 6 | 15 | 0 | 1 | 21 | 21 | 6 | 8 | 0.4286 | 1.000 | 0.3 | 0.21 | 1.89 | 38.5 | 100.0 | 3 |
| 1979 | Cincinnati Reds | NL | MLB | 32 | P | 30 | 0 | 44.2 | 3 | 7 | 1 | 1 | 11 | 10 | 0 | 0 | .909 | 0.3 | 0.23 | 2.07 | 18.6 | 100.0 | 7 | |
| 1979 | San Francisco Giants | NL | MLB | 32 | P | 30 | 0 | 46.0 | 4 | 3 | 1 | 0 | 8 | 7 | 4 | 2 | 0.6667 | .875 | 0.2 | 0.15 | 1.35 | 18.5 | 100.0 | 7 |
| 1980 | St. Louis Cardinals | NL | MLB | 33 | P | 10 | 0 | 19.0 | 0 | 3 | 1 | 0 | 4 | 3 | 2 | 2 | 0.5 | .750 | 0.3 | 0.16 | 1.44 | 6.2 | 100.0 | 16 |
| Tot: | MLB (12 yrs) | MLB | P | 593 | 1 | 1,025.3 | 54 | 152 | 16 | 8 | 222 | 206 | 30 | 25 | 0.5455 | .928 | 0.3 | 0.20 | 1.81 |
| year | category | pos P | pos C | pos 1B | pos 2B | pos 3B | pos SS | pos LF | pos CF | pos RF | pos OF | pos DH |
| 1969 | MLB | 22 | - | - | - | - | - | - | - | - | - | - |
| 1970 | MLB | 12 | - | - | - | - | - | - | - | - | - | - |
| 1971 | MLB | 3 | - | - | - | - | - | - | - | - | - | - |
| 1972 | MLB | 62 | - | - | - | - | - | - | - | - | - | - |
| 1973 | MLB | 80 | - | - | - | - | - | - | - | - | - | - |
| 1974 | MLB | 73 | - | - | - | - | - | - | - | - | - | - |
| 1975 | MLB | 67 | - | - | - | - | - | - | - | - | - | - |
| 1976 | MLB | 69 | - | - | - | - | - | - | - | - | - | - |
| 1977 | MLB | 73 | - | - | - | - | - | - | - | - | - | - |
| 1978 | MLB | 62 | - | - | - | - | - | - | - | - | - | - |
| 1979 | MLB | 60 | - | - | - | - | - | - | - | - | - | - |
| 1980 | MLB | 10 | - | - | - | - | - | - | - | - | - | - |