| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1968 | Oakland Athletics | AL | MLB | OAK | 22 | 22 | 3 | 4 | 3.28 | 47 | 1 | 0 | 0 | 46 | 16 | 4 | 68.2 | 51 | 29 | 25 | 5 | 34 | 34 | 6 | 0 | 2 | 1.24 | 6.68 | 0.66 | 4.46 | 4.46 | 3.80 | 1.00 |
| 1969 | Oakland Athletics | AL | MLB | OAK | 22 | 23 | 1 | 1 | 4.47 | 27 | 0 | 0 | 0 | 27 | 9 | 2 | 46.1 | 47 | 24 | 23 | 4 | 31 | 20 | 2 | 0 | 2 | 1.68 | 9.13 | 0.78 | 6.02 | 3.88 | 4.66 | 0.65 |
| 1971 | Cincinnati Reds | NL | MLB | CIN | 44 | 25 | 1 | 0 | 0.00 | 7 | 0 | 0 | 0 | 7 | 1 | 0 | 11.0 | 8 | 2 | 0 | 0 | 1 | 7 | 1 | 0 | 0 | 0.82 | 6.55 | 0.00 | 0.82 | 5.73 | 1.64 | 7.00 |
| 1972 | Cincinnati Reds | NL | MLB | CIN | 44 | 26 | 3 | 3 | 4.13 | 33 | 1 | 0 | 0 | 32 | 10 | 0 | 56.2 | 55 | 33 | 26 | 6 | 26 | 25 | 6 | 0 | 3 | 1.43 | 8.74 | 0.95 | 4.13 | 3.97 | 5.24 | 0.96 |
| 1973 | Cincinnati Reds | NL | MLB | CIN | 44 | 27 | 1 | 3 | 5.12 | 28 | 0 | 0 | 0 | 28 | 10 | 1 | 38.2 | 35 | 22 | 22 | 3 | 22 | 19 | 3 | 1 | 2 | 1.47 | 8.15 | 0.70 | 5.12 | 4.42 | 5.12 | 0.86 |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 48 | 27 | 0 | 0 | 2.25 | 8 | 0 | 0 | 0 | 8 | 5 | 0 | 8.0 | 8 | 2 | 2 | 1 | 4 | 2 | 0 | 0 | 0 | 1.50 | 9.00 | 1.13 | 4.50 | 2.25 | 2.25 | 0.50 |
| 1973 | Milwaukee Brewers | AL | MLB | MIL | 29 | 27 | 0 | 1 | 9.31 | 7 | 0 | 0 | 0 | 7 | 5 | 1 | 9.2 | 13 | 11 | 10 | 0 | 14 | 3 | 1 | 0 | 2 | 2.79 | 12.10 | 0.00 | 13.03 | 2.79 | 10.24 | 0.21 |
| 1974 | Milwaukee Brewers | AL | MLB | MIL | 29 | 28 | 7 | 2 | 2.39 | 20 | 10 | 3 | 0 | 10 | 5 | 0 | 94.0 | 94 | 32 | 25 | 3 | 31 | 57 | 1 | 0 | 4 | 1.33 | 9.00 | 0.29 | 2.97 | 5.46 | 3.06 | 1.84 |
| 1975 | Milwaukee Brewers | AL | MLB | MIL | 29 | 29 | 1 | 7 | 4.68 | 18 | 11 | 0 | 0 | 7 | 2 | 1 | 67.1 | 81 | 46 | 35 | 5 | 40 | 21 | 6 | 0 | 2 | 1.80 | 10.83 | 0.67 | 5.35 | 2.81 | 6.15 | 0.53 |
| 1976 | Milwaukee Brewers | AL | MLB | MIL | 29 | 30 | 0 | 2 | 7.04 | 3 | 0 | 0 | 0 | 3 | 1 | 0 | 7.2 | 14 | 7 | 6 | 0 | 3 | 0 | 1 | 0 | 0 | 2.22 | 16.43 | 0.00 | 3.52 | 0.00 | 8.22 | 0.00 |
| Tot: | MLB (8 yrs) | MLB | 17 | 23 | 3.84 | 198 | 23 | 3 | 0 | 64 | 175 | 9 | 408.0 | 406 | 208 | 174 | 27 | 206 | 188 | 27 | 1 | 17 | 1.50 | 8.96 | 0.60 | 4.54 | 4.15 | 4.59 | 0.91 | ||||
| Tot: | AL (6 yrs) | AL | 12 | 17 | 3.80 | 122 | 22 | 3 | 0 | 38 | 100 | 8 | 293.2 | 300 | 149 | 124 | 17 | 153 | 135 | 17 | 0 | 12 | 1.54 | 9.19 | 0.52 | 4.69 | 4.14 | 4.57 | 0.88 | ||||
| Tot: | NL (3 yrs) | NL | 5 | 6 | 3.94 | 76 | 1 | 0 | 0 | 26 | 75 | 1 | 114.1 | 106 | 59 | 50 | 10 | 53 | 53 | 10 | 1 | 5 | 1.39 | 8.34 | 0.79 | 4.17 | 4.17 | 4.64 | 1.00 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | level | mlb | # | age | pos | tbc+ | g | ab | r | h | 2b | 3b | hr | rbi | sb | cs | bb | so | hbp | sh | sf | ibb | gdp | tb | pa | xbh | 1b | avg | obp | slg | ops | seca | iso | babip | bb% | so% | so/bb | ab/hr |
| 1968 | Oakland Athletics | AL | MLB | OAK | 22 | 22 | P | 47 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 71.43 | 0.00 | 0.00 | |
| 1969 | Oakland Athletics | AL | MLB | OAK | 22 | 23 | P | 27 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 2 | 7 | 1 | 0 | .200 | .200 | .400 | .600 | .200 | .200 | .250 | 0.00 | 14.29 | 0.00 | 0.00 | |
| 1971 | Cincinnati Reds | NL | MLB | CIN | 44 | 25 | P | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1972 | Cincinnati Reds | NL | MLB | CIN | 44 | 26 | P | 33 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 71.43 | 0.00 | 0.00 | |
| 1973 | Cincinnati Reds | NL | MLB | CIN | 44 | 27 | P | 28 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 33.33 | 0.00 | 0.00 | |
| Tot: | MLB (5 yrs) | MLB | 142 | 22 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 3 | 0 | 0 | 1 | 2 | 25 | 1 | 0 | .045 | .045 | .091 | .136 | .045 | .045 | .111 | 0.00 | 52.00 | ||||||||
| Tot: | AL (2 yrs) | AL | 74 | 12 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 2 | 0 | 0 | 1 | 2 | 14 | 1 | 0 | .083 | .083 | .167 | .250 | .083 | .083 | .167 | 0.00 | 42.86 | ||||||||
| Tot: | NL (3 yrs) | NL | 68 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 63.64 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 22 | 21 | 43 | 18 | 43 | 46 | .502 |