| 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 | 23 | 27 | 2 | 2 | 3.95 | 24 | 5 | 1 | 0 | 19 | 6 | 0 | 57.0 | 49 | 28 | 25 | 8 | 37 | 47 | 5 | 0 | 0 | 1.51 | 7.74 | 1.26 | 5.84 | 7.42 | 4.42 | 1.27 |
| 1971 | Washington Senators II | AL | MLB | WS2 | 23 | 28 | 3 | 4 | 5.94 | 14 | 9 | 0 | 0 | 5 | 0 | 0 | 47.0 | 60 | 34 | 31 | 9 | 27 | 21 | 3 | 0 | 1 | 1.85 | 11.49 | 1.72 | 5.17 | 4.02 | 6.51 | 0.78 |
| 1973 | Texas Rangers | AL | MLB | TEX | 31 | 30 | 5 | 5 | 3.91 | 25 | 3 | 2 | 1 | 22 | 10 | 2 | 66.2 | 82 | 31 | 29 | 7 | 25 | 45 | 1 | 0 | 2 | 1.60 | 11.07 | 0.94 | 3.37 | 6.07 | 4.18 | 1.80 |
| 1974 | Texas Rangers | AL | MLB | TEX | 28 | 31 | 13 | 12 | 3.57 | 35 | 26 | 9 | 2 | 9 | 2 | 0 | 216.2 | 219 | 97 | 86 | 13 | 74 | 134 | 6 | 1 | 4 | 1.35 | 9.10 | 0.54 | 3.07 | 5.57 | 4.03 | 1.81 |
| 1975 | Texas Rangers | AL | MLB | TEX | 28 | 32 | 5 | 5 | 4.22 | 17 | 7 | 2 | 1 | 10 | 4 | 0 | 70.1 | 70 | 37 | 33 | 7 | 35 | 35 | 4 | 0 | 2 | 1.49 | 8.96 | 0.90 | 4.48 | 4.48 | 4.73 | 1.00 |
| 1975 | Cleveland Indians | AL | MLB | CLE | 31 | 32 | 1 | 2 | 4.28 | 25 | 3 | 1 | 0 | 22 | 14 | 1 | 69.1 | 72 | 40 | 33 | 9 | 29 | 41 | 2 | 0 | 0 | 1.46 | 9.35 | 1.17 | 3.76 | 5.32 | 5.19 | 1.41 |
| 1976 | Cleveland Indians | AL | MLB | CLE | 31 | 33 | 9 | 11 | 4.25 | 32 | 27 | 5 | 2 | 5 | 0 | 0 | 180.0 | 193 | 94 | 85 | 14 | 55 | 104 | 5 | 0 | 7 | 1.38 | 9.65 | 0.70 | 2.75 | 5.20 | 4.70 | 1.89 |
| 1977 | Montreal Expos | NL | MLB | MON | 31 | 34 | 9 | 12 | 4.51 | 42 | 25 | 6 | 2 | 17 | 3 | 0 | 185.2 | 189 | 99 | 93 | 15 | 71 | 89 | 2 | 0 | 4 | 1.40 | 9.16 | 0.73 | 3.44 | 4.31 | 4.80 | 1.25 |
| 1978 | Tucson Toros | PCL | AAA | TEX | - | 35 | 12 | 10 | 5.10 | 29 | 28 | 13 | 2 | 1 | 0 | 0 | 203.0 | 256 | 140 | 115 | 11 | 74 | 103 | 13 | 0 | 9 | 1.63 | 11.35 | 0.49 | 3.28 | 4.57 | 6.21 | 1.39 |
| Tot: | MLB (7 yrs) | MLB | 47 | 53 | 4.18 | 214 | 105 | 26 | 8 | 39 | 109 | 3 | 892.2 | 934 | 460 | 415 | 82 | 353 | 516 | 28 | 1 | 20 | 1.44 | 9.42 | 0.83 | 3.56 | 5.20 | 4.64 | 1.46 | ||||
| Tot: | AL (6 yrs) | AL | 38 | 41 | 4.10 | 172 | 80 | 20 | 6 | 36 | 92 | 3 | 707.0 | 745 | 361 | 322 | 67 | 282 | 427 | 26 | 1 | 16 | 1.45 | 9.48 | 0.85 | 3.59 | 5.44 | 4.60 | 1.51 | ||||
| Tot: | NL (1 yrs) | NL | 9 | 12 | 4.51 | 42 | 25 | 6 | 2 | 3 | 17 | 0 | 185.2 | 189 | 99 | 93 | 15 | 71 | 89 | 2 | 0 | 4 | 1.40 | 9.16 | 0.73 | 3.44 | 4.31 | 4.80 | 1.25 | ||||
| Tot: | Minors (1 yrs) | Minors | 12 | 10 | 5.10 | 29 | 28 | 13 | 2 | 0 | 1 | 0 | 203.0 | 256 | 140 | 115 | 11 | 74 | 103 | 13 | 0 | 9 | 1.63 | 11.35 | 0.49 | 3.28 | 4.57 | 6.21 | 1.39 | ||||
| Tot: | AAA (1 yrs) | AAA | 12 | 10 | 5.10 | 29 | 28 | 13 | 2 | 0 | 1 | 0 | 203.0 | 256 | 140 | 115 | 11 | 74 | 103 | 13 | 0 | 9 | 1.63 | 11.35 | 0.49 | 3.28 | 4.57 | 6.21 | 1.39 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 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 | 23 | 27 | P | 24 | 13 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 2 | 13 | 0 | 2 | .154 | .154 | .154 | .308 | .000 | .000 | .250 | 0.00 | 38.46 | 0.00 | 0.00 | |
| 1971 | Washington Senators II | AL | MLB | WS2 | 23 | 28 | P | 14 | 15 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 2 | 15 | 0 | 2 | .133 | .133 | .133 | .266 | .000 | .000 | .400 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1977 | Montreal Expos | NL | MLB | MON | 31 | 34 | P | 42 | 56 | 2 | 7 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 24 | 0 | 4 | 0 | 0 | 1 | 7 | 61 | 0 | 7 | .125 | .140 | .125 | .265 | .018 | .000 | .219 | 1.64 | 39.34 | 24.00 | 0.00 | |
| Tot: | MLB (3 yrs) | MLB | 80 | 84 | 4 | 11 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 39 | 0 | 4 | 0 | 0 | 1 | 11 | 89 | 0 | 11 | .131 | .141 | .131 | .272 | .012 | .000 | .244 | 1.12 | 43.82 | 39.00 | |||||||
| Tot: | AL (2 yrs) | AL | 38 | 28 | 2 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 4 | 28 | 0 | 4 | .143 | .143 | .143 | .286 | .000 | .000 | .308 | 0.00 | 53.57 | ||||||||
| Tot: | NL (1 yrs) | NL | 42 | 56 | 2 | 7 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 24 | 0 | 4 | 0 | 0 | 1 | 7 | 61 | 0 | 7 | .125 | .140 | .125 | .265 | .018 | .000 | .219 | 1.64 | 39.34 | 24.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 53 | 45 | 33 | 50 | 33 | 75 | .461 |