| 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 |
| 1970 | Washington Senators II | AL | MLB | WS2 | 18 | 22 | 2 | 2 | 4.81 | 8 | 5 | 0 | 0 | 3 | 0 | 0 | 33.2 | 33 | 18 | 18 | 2 | 25 | 19 | 3 | 0 | 1 | 1.72 | 8.82 | 0.53 | 6.68 | 5.08 | 4.81 | 0.76 |
| 1971 | Washington Senators II | AL | MLB | WS2 | 13 | 23 | 6 | 5 | 2.75 | 27 | 17 | 4 | 1 | 10 | 3 | 0 | 124.1 | 112 | 39 | 38 | 5 | 39 | 70 | 1 | 0 | 2 | 1.21 | 8.11 | 0.36 | 2.82 | 5.07 | 2.82 | 1.79 |
| 1972 | Texas Rangers | AL | MLB | TEX | 13 | 24 | 4 | 11 | 4.24 | 36 | 21 | 2 | 1 | 15 | 6 | 2 | 150.2 | 136 | 74 | 71 | 9 | 58 | 95 | 7 | 0 | 6 | 1.29 | 8.12 | 0.54 | 3.46 | 5.67 | 4.42 | 1.64 |
| 1973 | Texas Rangers | AL | MLB | TEX | 28 | 25 | 3 | 6 | 4.22 | 49 | 1 | 0 | 0 | 48 | 22 | 6 | 123.2 | 139 | 67 | 58 | 10 | 48 | 77 | 3 | 0 | 1 | 1.51 | 10.12 | 0.73 | 3.49 | 5.60 | 4.88 | 1.60 |
| 1974 | Cleveland Indians | AL | MLB | CLE | 32 | 26 | 0 | 0 | 4.61 | 5 | 0 | 0 | 0 | 5 | 2 | 0 | 13.2 | 15 | 7 | 7 | 1 | 2 | 3 | 0 | 0 | 1 | 1.24 | 9.88 | 0.66 | 1.32 | 1.98 | 4.61 | 1.50 |
| 1975 | Chicago White Sox | AL | MLB | CHA | 32 | 27 | 0 | 0 | 5.24 | 19 | 0 | 0 | 0 | 19 | 10 | 2 | 55.0 | 61 | 35 | 32 | 5 | 28 | 37 | 0 | 0 | 1 | 1.62 | 9.98 | 0.82 | 4.58 | 6.05 | 5.73 | 1.32 |
| Tot: | MLB (6 yrs) | MLB | 15 | 24 | 4.02 | 144 | 44 | 6 | 2 | 43 | 100 | 10 | 501.0 | 496 | 240 | 224 | 32 | 200 | 301 | 14 | 0 | 12 | 1.39 | 8.91 | 0.57 | 3.59 | 5.41 | 4.31 | 1.51 | ||||
| Tot: | AL (6 yrs) | AL | 15 | 24 | 4.02 | 144 | 44 | 6 | 2 | 43 | 100 | 10 | 501.0 | 496 | 240 | 224 | 32 | 200 | 301 | 14 | 0 | 12 | 1.39 | 8.91 | 0.57 | 3.59 | 5.41 | 4.31 | 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 |
| 1970 | Washington Senators II | AL | MLB | WS2 | 18 | 22 | P | 8 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | .000 | .125 | .000 | .125 | .143 | .000 | .000 | 10.00 | 40.00 | 4.00 | 0.00 | |
| 1971 | Washington Senators II | AL | MLB | WS2 | 13 | 23 | P | 27 | 32 | 1 | 5 | 1 | 0 | 0 | 4 | 0 | 0 | 2 | 14 | 0 | 4 | 0 | 0 | 1 | 6 | 38 | 1 | 4 | .156 | .206 | .188 | .394 | .094 | .032 | .278 | 5.26 | 36.84 | 7.00 | 0.00 | |
| 1972 | Texas Rangers | AL | MLB | TEX | 13 | 24 | P | 36 | 40 | 1 | 5 | 0 | 0 | 0 | 3 | 0 | 0 | 2 | 16 | 0 | 2 | 0 | 0 | 1 | 5 | 44 | 0 | 5 | .125 | .167 | .125 | .292 | .050 | .000 | .208 | 4.55 | 36.36 | 8.00 | 0.00 | |
| Tot: | MLB (3 yrs) | MLB | 71 | 79 | 2 | 10 | 1 | 0 | 0 | 7 | 0 | 0 | 5 | 34 | 0 | 8 | 0 | 0 | 2 | 11 | 92 | 1 | 9 | .127 | .179 | .139 | .318 | .076 | .013 | .222 | 5.43 | 36.96 | 6.80 | |||||||
| Tot: | AL (3 yrs) | AL | 71 | 79 | 2 | 10 | 1 | 0 | 0 | 7 | 0 | 0 | 5 | 34 | 0 | 8 | 0 | 0 | 2 | 11 | 92 | 1 | 9 | .127 | .179 | .139 | .318 | .076 | .013 | .222 | 5.43 | 36.96 | 6.80 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 57 | 38 | 41 | 46 | 41 | 52 | .412 |