| 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 |
| 1961 | Kansas City Athletics | AL | MLB | KC1 | 24 | 18 | 2 | 5 | 4.85 | 12 | 8 | 2 | 1 | 4 | 1 | 0 | 55.2 | 49 | 33 | 30 | 3 | 46 | 32 | 2 | 0 | 1 | 1.71 | 7.92 | 0.49 | 7.44 | 5.17 | 5.34 | 0.70 |
| 1964 | Kansas City Athletics | AL | MLB | KC1 | 21,31 | 21 | 0 | 2 | 7.36 | 5 | 4 | 0 | 0 | 1 | 0 | 0 | 14.2 | 22 | 14 | 12 | 1 | 9 | 9 | 2 | 0 | 2 | 2.11 | 13.50 | 0.61 | 5.52 | 5.52 | 8.59 | 1.00 |
| 1965 | Kansas City Athletics | AL | MLB | KC1 | 25 | 22 | 2 | 4 | 5.04 | 7 | 5 | 0 | 0 | 2 | 1 | 0 | 25.0 | 29 | 14 | 14 | 1 | 8 | 22 | 0 | 0 | 0 | 1.48 | 10.44 | 0.36 | 2.88 | 7.92 | 5.04 | 2.75 |
| 1966 | Kansas City Athletics | AL | MLB | KC1 | 20 | 23 | 14 | 9 | 2.99 | 36 | 22 | 4 | 1 | 14 | 6 | 3 | 177.2 | 144 | 69 | 59 | 8 | 63 | 87 | 6 | 0 | 6 | 1.17 | 7.29 | 0.41 | 3.19 | 4.41 | 3.50 | 1.38 |
| 1967 | Kansas City Athletics | AL | MLB | KC1 | 20 | 24 | 7 | 17 | 4.28 | 48 | 19 | 0 | 0 | 29 | 16 | 6 | 160.0 | 140 | 85 | 76 | 17 | 67 | 96 | 5 | 0 | 4 | 1.29 | 7.88 | 0.96 | 3.77 | 5.40 | 4.78 | 1.43 |
| 1968 | Oakland Athletics | AL | MLB | OAK | 20 | 25 | 10 | 11 | 3.11 | 36 | 25 | 2 | 0 | 11 | 7 | 4 | 185.0 | 147 | 68 | 64 | 16 | 62 | 105 | 3 | 0 | 3 | 1.13 | 7.15 | 0.78 | 3.02 | 5.11 | 3.31 | 1.69 |
| 1969 | Oakland Athletics | AL | MLB | OAK | 20 | 26 | 7 | 7 | 4.44 | 43 | 16 | 4 | 2 | 27 | 15 | 7 | 140.0 | 134 | 75 | 69 | 23 | 48 | 85 | 3 | 0 | 5 | 1.30 | 8.61 | 1.48 | 3.09 | 5.46 | 4.82 | 1.77 |
| 1970 | Milwaukee Brewers | AL | MLB | MIL | 24 | 27 | 13 | 18 | 4.75 | 37 | 35 | 8 | 1 | 2 | 2 | 0 | 216.0 | 235 | 130 | 114 | 33 | 67 | 130 | 3 | 0 | 4 | 1.40 | 9.79 | 1.38 | 2.79 | 5.42 | 5.42 | 1.94 |
| 1971 | Milwaukee Brewers | AL | MLB | MIL | 24 | 28 | 8 | 12 | 2.94 | 43 | 22 | 1 | 0 | 21 | 4 | 0 | 180.1 | 164 | 67 | 59 | 23 | 62 | 92 | 1 | 1 | 5 | 1.25 | 8.18 | 1.15 | 3.09 | 4.59 | 3.34 | 1.48 |
| 1972 | Boston Red Sox | AL | MLB | BOS | 18 | 29 | 1 | 3 | 6.38 | 24 | 7 | 0 | 0 | 17 | 8 | 1 | 60.2 | 74 | 48 | 43 | 9 | 28 | 35 | 2 | 0 | 3 | 1.68 | 10.98 | 1.34 | 4.15 | 5.19 | 7.12 | 1.25 |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 29 | 30 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2.0 | 2 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1.50 | 9.00 | 0.00 | 4.50 | 4.50 | 0.00 | 1.00 |
| 1974 | Atlanta Braves | NL | MLB | ATL | 36 | 31 | 4 | 3 | 4.18 | 29 | 4 | 0 | 0 | 25 | 10 | 0 | 66.2 | 65 | 32 | 31 | 3 | 32 | 27 | 2 | 0 | 2 | 1.45 | 8.77 | 0.40 | 4.32 | 3.64 | 4.32 | 0.84 |
| Tot: | MLB (12 yrs) | MLB | 68 | 91 | 4.00 | 321 | 167 | 21 | 5 | 71 | 154 | 21 | 1283.2 | 1205 | 635 | 571 | 137 | 493 | 721 | 29 | 1 | 35 | 1.32 | 8.45 | 0.96 | 3.46 | 5.06 | 4.45 | 1.46 | ||||
| Tot: | NL (2 yrs) | NL | 4 | 3 | 4.06 | 30 | 4 | 0 | 0 | 11 | 26 | 0 | 68.2 | 67 | 32 | 31 | 3 | 33 | 28 | 2 | 0 | 2 | 1.46 | 8.78 | 0.39 | 4.33 | 3.67 | 4.19 | 0.85 | ||||
| Tot: | AL (10 yrs) | AL | 64 | 88 | 4.00 | 291 | 163 | 21 | 5 | 60 | 128 | 21 | 1215.0 | 1138 | 603 | 540 | 134 | 460 | 693 | 27 | 1 | 33 | 1.32 | 8.43 | 0.99 | 3.41 | 5.13 | 4.47 | 1.51 | ||||
| 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 |
| 1961 | Kansas City Athletics | AL | MLB | KC1 | 24 | 18 | P | 13 | 17 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 0 | 1 | 0 | 0 | 0 | 2 | 19 | 0 | 2 | .118 | .167 | .118 | .285 | .059 | .000 | .222 | 5.26 | 42.11 | 8.00 | 0.00 | |
| 1964 | Kansas City Athletics | AL | MLB | KC1 | 21,31 | 21 | P | 8 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .333 | .000 | .333 | .500 | .000 | .000 | 33.33 | 66.67 | 2.00 | 0.00 | |
| 1965 | Kansas City Athletics | AL | MLB | KC1 | 25 | 22 | P | 10 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 37.50 | 0.00 | 0.00 | |
| 1966 | Kansas City Athletics | AL | MLB | KC1 | 20 | 23 | P | 40 | 52 | 5 | 8 | 1 | 0 | 0 | 3 | 0 | 0 | 3 | 24 | 1 | 6 | 1 | 0 | 1 | 9 | 63 | 1 | 7 | .154 | .211 | .173 | .384 | .077 | .019 | .276 | 4.76 | 38.10 | 8.00 | 0.00 | |
| 1967 | Kansas City Athletics | AL | MLB | KC1 | 20 | 24 | P | 49 | 41 | 2 | 6 | 1 | 0 | 1 | 3 | 1 | 0 | 1 | 16 | 0 | 1 | 0 | 0 | 1 | 10 | 43 | 2 | 4 | .146 | .167 | .244 | .411 | .146 | .098 | .208 | 2.33 | 37.21 | 16.00 | 41.00 | |
| 1968 | Oakland Athletics | AL | MLB | OAK | 20 | 25 | P | 36 | 56 | 4 | 9 | 5 | 0 | 0 | 2 | 0 | 0 | 5 | 25 | 0 | 2 | 0 | 0 | 0 | 14 | 63 | 5 | 4 | .161 | .230 | .250 | .480 | .179 | .089 | .290 | 7.94 | 39.68 | 5.00 | 0.00 | |
| 1969 | Oakland Athletics | AL | MLB | OAK | 20 | 26 | P | 43 | 48 | 7 | 8 | 1 | 0 | 4 | 9 | 0 | 0 | 2 | 22 | 0 | 1 | 0 | 0 | 1 | 21 | 51 | 5 | 3 | .167 | .200 | .438 | .638 | .313 | .271 | .182 | 3.92 | 43.14 | 11.00 | 12.00 | |
| 1970 | Milwaukee Brewers | AL | MLB | MIL | 24 | 27 | P | 38 | 65 | 3 | 9 | 0 | 1 | 0 | 4 | 0 | 1 | 8 | 31 | 0 | 7 | 0 | 0 | 1 | 11 | 80 | 1 | 8 | .138 | .233 | .169 | .402 | .138 | .031 | .265 | 10.00 | 38.75 | 3.88 | 0.00 | |
| 1971 | Milwaukee Brewers | AL | MLB | MIL | 24 | 28 | P | 43 | 44 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 22 | 1 | 5 | 0 | 0 | 1 | 1 | 53 | 0 | 1 | .023 | .104 | .023 | .127 | .068 | .000 | .045 | 5.66 | 41.51 | 7.33 | 0.00 | |
| 1972 | Boston Red Sox | AL | MLB | BOS | 18 | 29 | P | 24 | 16 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 3 | 16 | 1 | 1 | .125 | .125 | .188 | .313 | .063 | .063 | .250 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1974 | Atlanta Braves | NL | MLB | ATL | 36 | 31 | P | 29 | 6 | 1 | 2 | 0 | 0 | 1 | 2 | 0 | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 5 | 10 | 1 | 1 | .333 | .500 | .833 | 1.333 | .833 | .500 | .333 | 20.00 | 20.00 | 1.00 | 6.00 | |
| Tot: | MLB (11 yrs) | MLB | 333 | 354 | 23 | 47 | 9 | 1 | 6 | 24 | 1 | 1 | 26 | 163 | 2 | 26 | 1 | 0 | 5 | 76 | 409 | 16 | 31 | .133 | .196 | .215 | .411 | .155 | .082 | .220 | 6.36 | 39.85 | 6.27 | 59.00 | ||||||
| Tot: | AL (10 yrs) | AL | 304 | 348 | 22 | 45 | 9 | 1 | 5 | 22 | 1 | 1 | 24 | 161 | 2 | 24 | 1 | 0 | 5 | 71 | 399 | 15 | 30 | .129 | .189 | .204 | .393 | .144 | .075 | .219 | 6.02 | 40.35 | 6.71 | 69.60 | ||||||
| Tot: | NL (1 yrs) | NL | 29 | 6 | 1 | 2 | 0 | 0 | 1 | 2 | 0 | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 5 | 10 | 1 | 1 | .333 | .500 | .833 | 1.333 | .833 | .500 | .333 | 20.00 | 20.00 | 1.00 | 6.00 | ||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 43 | 44 | 49 | 40 | 49 | 62 | .451 |