| 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 |
| 1969 | Boston Red Sox | AL | MLB | BOS | 15 | 21 | 12 | 2 | 3.11 | 33 | 28 | 7 | 1 | 5 | 2 | 0 | 196.2 | 183 | 84 | 68 | 10 | 106 | 84 | 6 | 0 | 11 | 1.47 | 8.37 | 0.46 | 4.85 | 3.84 | 3.84 | 0.79 |
| 1970 | Boston Red Sox | AL | MLB | BOS | 15 | 22 | 6 | 5 | 4.48 | 23 | 20 | 4 | 0 | 3 | 1 | 0 | 128.2 | 138 | 71 | 64 | 16 | 64 | 56 | 5 | 1 | 2 | 1.57 | 9.65 | 1.12 | 4.48 | 3.92 | 4.97 | 0.88 |
| 1971 | Boston Red Sox | AL | MLB | BOS | 15 | 23 | 1 | 3 | 6.63 | 12 | 7 | 0 | 0 | 5 | 2 | 0 | 38.0 | 46 | 29 | 28 | 4 | 20 | 9 | 1 | 0 | 0 | 1.74 | 10.89 | 0.95 | 4.74 | 2.13 | 6.87 | 0.45 |
| 1972 | Boston Red Sox | AL | MLB | BOS | 15 | 24 | 0 | 0 | 9.00 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2.0 | 3 | 2 | 2 | 0 | 0 | 2 | 1 | 0 | 1 | 1.50 | 13.50 | 0.00 | 0.00 | 9.00 | 9.00 | 0.00 |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 49 | 25 | 0 | 2 | 4.20 | 9 | 7 | 0 | 0 | 2 | 1 | 0 | 40.2 | 44 | 21 | 19 | 4 | 15 | 14 | 0 | 0 | 1 | 1.45 | 9.74 | 0.89 | 3.32 | 3.10 | 4.65 | 0.93 |
| 1974 | Houston Astros | NL | MLB | HOU | 45 | 26 | 1 | 1 | 8.53 | 9 | 0 | 0 | 0 | 9 | 2 | 0 | 12.2 | 17 | 13 | 12 | 3 | 5 | 5 | 1 | 0 | 1 | 1.74 | 12.08 | 2.13 | 3.55 | 3.55 | 9.24 | 1.00 |
| Tot: | MLB (6 yrs) | MLB | 20 | 13 | 4.15 | 87 | 62 | 11 | 1 | 8 | 25 | 0 | 418.2 | 431 | 220 | 193 | 37 | 210 | 170 | 14 | 1 | 16 | 1.53 | 9.27 | 0.80 | 4.51 | 3.65 | 4.73 | 0.81 | ||||
| Tot: | AL (4 yrs) | AL | 19 | 10 | 3.99 | 69 | 55 | 11 | 1 | 5 | 14 | 0 | 365.1 | 370 | 186 | 162 | 30 | 190 | 151 | 13 | 1 | 14 | 1.53 | 9.11 | 0.74 | 4.68 | 3.72 | 4.58 | 0.79 | ||||
| Tot: | NL (2 yrs) | NL | 1 | 3 | 5.23 | 18 | 7 | 0 | 0 | 3 | 11 | 0 | 53.1 | 61 | 34 | 31 | 7 | 20 | 19 | 1 | 0 | 2 | 1.52 | 10.29 | 1.18 | 3.37 | 3.21 | 5.74 | 0.95 | ||||
| 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 |
| 1969 | Boston Red Sox | AL | MLB | BOS | 15 | 21 | P | 34 | 65 | 4 | 5 | 1 | 0 | 0 | 2 | 1 | 0 | 6 | 27 | 1 | 4 | 0 | 0 | 2 | 6 | 76 | 1 | 4 | .077 | .167 | .092 | .259 | .123 | .015 | .132 | 7.89 | 35.53 | 4.50 | 0.00 | |
| 1970 | Boston Red Sox | AL | MLB | BOS | 15 | 22 | P | 23 | 44 | 3 | 11 | 1 | 1 | 0 | 4 | 0 | 0 | 0 | 8 | 0 | 2 | 0 | 0 | 1 | 14 | 46 | 2 | 9 | .250 | .250 | .318 | .568 | .068 | .068 | .306 | 0.00 | 17.39 | 0.00 | 0.00 | |
| 1971 | Boston Red Sox | AL | MLB | BOS | 15 | 23 | P | 12 | 12 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 2 | 12 | 1 | 0 | .083 | .083 | .167 | .250 | .083 | .084 | .111 | 0.00 | 25.00 | 0.00 | 0.00 | |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 49 | 25 | P | 9 | 11 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 11 | 0 | 1 | .091 | .091 | .091 | .182 | .000 | .000 | .250 | 0.00 | 63.64 | 0.00 | 0.00 | |
| 1974 | Houston Astros | NL | MLB | HOU | 45 | 26 | P | 9 | 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 | |
| Tot: | MLB (5 yrs) | MLB | 87 | 133 | 8 | 18 | 3 | 1 | 0 | 8 | 1 | 0 | 6 | 45 | 1 | 6 | 0 | 0 | 4 | 23 | 146 | 4 | 14 | .135 | .179 | .173 | .352 | .090 | .038 | .205 | 4.11 | 30.82 | 7.50 | |||||||
| Tot: | AL (3 yrs) | AL | 69 | 121 | 8 | 17 | 3 | 1 | 0 | 7 | 1 | 0 | 6 | 38 | 1 | 6 | 0 | 0 | 4 | 22 | 134 | 4 | 13 | .140 | .188 | .182 | .369 | .099 | .041 | .205 | 4.48 | 28.36 | 6.33 | |||||||
| Tot: | NL (2 yrs) | NL | 18 | 12 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 1 | 12 | 0 | 1 | .083 | .083 | .083 | .167 | .000 | .000 | .200 | 0.00 | 58.33 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 7 | 32 | 29 | 8 | 29 | 37 | .524 |