| 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 |
| 1964 | Kansas City Athletics | AL | MLB | KC1 | 21 | 23 | 0 | 1 | 8.82 | 9 | 0 | 0 | 0 | 9 | 1 | 0 | 16.1 | 17 | 18 | 16 | 6 | 10 | 7 | 0 | 0 | 6 | 1.65 | 9.37 | 3.31 | 5.51 | 3.86 | 9.92 | 0.70 |
| 1965 | Kansas City Athletics | AL | MLB | KC1 | 23 | 24 | 4 | 3 | 3.16 | 34 | 0 | 0 | 0 | 34 | 14 | 3 | 51.1 | 45 | 18 | 18 | 3 | 18 | 26 | 1 | 0 | 3 | 1.23 | 7.89 | 0.53 | 3.16 | 4.56 | 3.16 | 1.44 |
| 1966 | Kansas City Athletics | AL | MLB | KC1 | 23 | 25 | 8 | 4 | 1.99 | 66 | 0 | 0 | 0 | 66 | 57 | 32 | 113.0 | 81 | 27 | 25 | 7 | 28 | 68 | 0 | 0 | 3 | 0.96 | 6.45 | 0.56 | 2.23 | 5.42 | 2.15 | 2.43 |
| 1967 | Kansas City Athletics | AL | MLB | KC1 | 23 | 26 | 3 | 8 | 4.30 | 57 | 0 | 0 | 0 | 57 | 40 | 12 | 88.0 | 87 | 44 | 42 | 9 | 32 | 65 | 1 | 0 | 3 | 1.35 | 8.90 | 0.92 | 3.27 | 6.65 | 4.50 | 2.03 |
| 1968 | Oakland Athletics | AL | MLB | OAK | 23 | 27 | 4 | 4 | 4.10 | 54 | 0 | 0 | 0 | 54 | 30 | 11 | 74.2 | 72 | 39 | 34 | 6 | 33 | 44 | 4 | 0 | 6 | 1.41 | 8.68 | 0.72 | 3.98 | 5.30 | 4.70 | 1.33 |
| 1969 | Seattle Pilots | AL | MLB | SE1 | 23 | 28 | 0 | 2 | 7.56 | 15 | 0 | 0 | 0 | 15 | 9 | 3 | 16.2 | 25 | 15 | 14 | 4 | 13 | 7 | 0 | 0 | 1 | 2.28 | 13.50 | 2.16 | 7.02 | 3.78 | 8.10 | 0.54 |
| 1969 | New York Yankees | AL | MLB | NYA | 22 | 28 | 8 | 4 | 2.06 | 38 | 0 | 0 | 0 | 38 | 23 | 11 | 65.2 | 51 | 17 | 15 | 4 | 22 | 40 | 0 | 0 | 4 | 1.11 | 6.99 | 0.55 | 3.02 | 5.48 | 2.33 | 1.82 |
| 1970 | New York Yankees | AL | MLB | NYA | 22 | 29 | 4 | 2 | 2.06 | 41 | 0 | 0 | 0 | 41 | 28 | 16 | 70.0 | 57 | 19 | 16 | 3 | 20 | 36 | 1 | 0 | 4 | 1.10 | 7.33 | 0.39 | 2.57 | 4.63 | 2.44 | 1.80 |
| 1971 | New York Yankees | AL | MLB | NYA | 22 | 30 | 4 | 4 | 2.59 | 41 | 0 | 0 | 0 | 41 | 20 | 4 | 55.2 | 48 | 20 | 16 | 3 | 26 | 24 | 3 | 0 | 0 | 1.33 | 7.76 | 0.49 | 4.20 | 3.88 | 3.23 | 0.92 |
| 1972 | New York Yankees | AL | MLB | NYA | 22 | 31 | 0 | 0 | 3.00 | 4 | 0 | 0 | 0 | 4 | 4 | 0 | 6.0 | 5 | 2 | 2 | 0 | 3 | 1 | 1 | 0 | 1 | 1.33 | 7.50 | 0.00 | 4.50 | 1.50 | 3.00 | 0.33 |
| 1972 | Chicago Cubs | NL | MLB | CHN | 38 | 31 | 6 | 6 | 2.96 | 48 | 0 | 0 | 0 | 48 | 39 | 17 | 67.0 | 65 | 31 | 22 | 4 | 23 | 36 | 1 | 0 | 5 | 1.31 | 8.73 | 0.54 | 3.09 | 4.84 | 4.16 | 1.57 |
| 1973 | Chicago Cubs | NL | MLB | CHN | 38 | 32 | 4 | 5 | 4.10 | 47 | 0 | 0 | 0 | 47 | 32 | 12 | 63.2 | 76 | 33 | 29 | 8 | 23 | 25 | 0 | 0 | 2 | 1.55 | 10.74 | 1.13 | 3.25 | 3.53 | 4.66 | 1.09 |
| 1974 | Atlanta Braves | NL | MLB | ATL | 33 | 33 | 0 | 1 | 3.78 | 17 | 0 | 0 | 0 | 17 | 8 | 0 | 16.2 | 17 | 11 | 7 | 3 | 9 | 7 | 0 | 0 | 0 | 1.56 | 9.18 | 1.62 | 4.86 | 3.78 | 5.94 | 0.78 |
| 1974 | New York Mets | NL | MLB | NYN | 22 | 33 | 2 | 1 | 3.48 | 24 | 0 | 0 | 0 | 24 | 16 | 2 | 41.1 | 33 | 18 | 16 | 4 | 14 | 18 | 1 | 0 | 2 | 1.14 | 7.19 | 0.87 | 3.05 | 3.92 | 3.92 | 1.29 |
| Tot: | MLB (11 yrs) | MLB | 47 | 45 | 3.28 | 495 | 0 | 0 | 0 | 321 | 495 | 123 | 746.0 | 679 | 312 | 272 | 64 | 274 | 404 | 13 | 0 | 40 | 1.28 | 8.19 | 0.77 | 3.31 | 4.87 | 3.76 | 1.47 | ||||
| Tot: | AL (9 yrs) | AL | 35 | 32 | 3.20 | 359 | 0 | 0 | 0 | 226 | 359 | 92 | 557.1 | 488 | 219 | 198 | 45 | 205 | 318 | 11 | 0 | 31 | 1.24 | 7.88 | 0.73 | 3.31 | 5.14 | 3.54 | 1.55 | ||||
| Tot: | NL (3 yrs) | NL | 12 | 13 | 3.53 | 136 | 0 | 0 | 0 | 95 | 136 | 31 | 188.2 | 191 | 93 | 74 | 19 | 69 | 86 | 2 | 0 | 9 | 1.38 | 9.11 | 0.91 | 3.29 | 4.10 | 4.44 | 1.25 | ||||
| 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 |
| 1964 | Kansas City Athletics | AL | MLB | KC1 | 21 | 23 | P | 10 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1965 | Kansas City Athletics | AL | MLB | KC1 | 23 | 24 | P | 34 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 77.78 | 0.00 | 0.00 | |
| 1966 | Kansas City Athletics | AL | MLB | KC1 | 23 | 25 | P | 66 | 21 | 1 | 2 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 12 | 0 | 1 | 0 | 0 | 0 | 3 | 22 | 1 | 1 | .095 | .095 | .143 | .238 | .048 | .048 | .222 | 0.00 | 54.55 | 0.00 | 0.00 | |
| 1967 | Kansas City Athletics | AL | MLB | KC1 | 23 | 26 | P | 57 | 8 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 0 | 0 | 1 | 11 | 0 | 1 | .125 | .125 | .125 | .250 | .000 | .000 | .250 | 0.00 | 36.36 | 0.00 | 0.00 | |
| 1968 | Oakland Athletics | AL | MLB | OAK | 23 | 27 | P | 54 | 7 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 1 | 8 | 0 | 1 | .143 | .143 | .143 | .286 | .000 | .000 | .500 | 0.00 | 62.50 | 0.00 | 0.00 | |
| 1969 | Seattle Pilots | AL | MLB | SE1 | 23 | 28 | P | 15 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .500 | .000 | .500 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1969 | New York Yankees | AL | MLB | NYA | 22 | 28 | P | 38 | 9 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 1 | 9 | 0 | 1 | .111 | .111 | .111 | .222 | .000 | .000 | .250 | 0.00 | 55.56 | 0.00 | 0.00 | |
| 1970 | New York Yankees | AL | MLB | NYA | 22 | 29 | P | 41 | 16 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 6 | 0 | 1 | 0 | 0 | 1 | 1 | 17 | 0 | 1 | .063 | .063 | .063 | .126 | .000 | .000 | .100 | 0.00 | 35.29 | 0.00 | 0.00 | |
| 1971 | New York Yankees | AL | MLB | NYA | 22 | 30 | P | 41 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1972 | Chicago Cubs | NL | MLB | CHN | 38 | 31 | P | 48 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .143 | .000 | .143 | .167 | .000 | .000 | 14.29 | 42.86 | 3.00 | 0.00 | |
| 1973 | Chicago Cubs | NL | MLB | CHN | 38 | 32 | P | 47 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 42.86 | 0.00 | 0.00 | |
| 1974 | Atlanta Braves | NL | MLB | ATL | 33 | 33 | P | 17 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1974 | New York Mets | NL | MLB | NYN | 22 | 33 | P | 24 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 0 | .500 | .500 | 1.000 | 1.500 | .500 | .500 | .500 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (11 yrs) | MLB | 492 | 92 | 3 | 7 | 2 | 0 | 0 | 4 | 0 | 0 | 1 | 51 | 1 | 10 | 0 | 0 | 1 | 9 | 104 | 2 | 5 | .076 | .096 | .098 | .194 | .033 | .022 | .171 | 0.96 | 49.04 | 51.00 | |||||||
| Tot: | AL (8 yrs) | AL | 356 | 76 | 2 | 6 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 45 | 1 | 10 | 0 | 0 | 1 | 7 | 87 | 1 | 5 | .079 | .091 | .092 | .183 | .013 | .013 | .194 | 0.00 | 51.72 | ||||||||
| Tot: | NL (3 yrs) | NL | 136 | 16 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 0 | 0 | 2 | 17 | 1 | 0 | .063 | .118 | .125 | .243 | .125 | .063 | .100 | 5.88 | 35.29 | 6.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 29 | 48 | 54 | 35 | 54 | 78 | .468 |