| 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 |
| 1971 | Houston Astros | NL | MLB | HOU | 50 | 21 | 2 | 1 | 3.43 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 21.0 | 17 | 9 | 8 | 1 | 16 | 29 | 2 | 0 | 0 | 1.57 | 7.29 | 0.43 | 6.86 | 12.43 | 3.86 | 1.81 |
| 1972 | Houston Astros | NL | MLB | HOU | 50 | 22 | 1 | 0 | 13.50 | 4 | 1 | 0 | 0 | 3 | 0 | 0 | 6.0 | 10 | 9 | 9 | 0 | 8 | 8 | 2 | 0 | 2 | 3.00 | 15.00 | 0.00 | 12.00 | 12.00 | 13.50 | 1.00 |
| 1973 | Houston Astros | NL | MLB | HOU | 50 | 23 | 6 | 2 | 4.00 | 16 | 10 | 2 | 1 | 6 | 2 | 0 | 72.0 | 54 | 37 | 32 | 2 | 38 | 75 | 3 | 1 | 1 | 1.28 | 6.75 | 0.25 | 4.75 | 9.38 | 4.63 | 1.97 |
| 1974 | Houston Astros | NL | MLB | HOU | 50 | 24 | 2 | 3 | 4.18 | 15 | 9 | 0 | 0 | 6 | 0 | 0 | 64.2 | 58 | 31 | 30 | 3 | 36 | 42 | 9 | 1 | 1 | 1.45 | 8.07 | 0.42 | 5.01 | 5.85 | 4.31 | 1.17 |
| 1975 | Houston Astros | NL | MLB | HOU | 50 | 25 | 12 | 10 | 4.39 | 33 | 31 | 7 | 1 | 2 | 1 | 0 | 203.0 | 178 | 107 | 99 | 8 | 138 | 176 | 20 | 5 | 4 | 1.56 | 7.89 | 0.35 | 6.12 | 7.80 | 4.74 | 1.28 |
| 1976 | Houston Astros | NL | MLB | HOU | 50 | 26 | 20 | 15 | 2.75 | 39 | 39 | 14 | 3 | 0 | 0 | 0 | 291.0 | 221 | 105 | 89 | 14 | 151 | 214 | 13 | 2 | 4 | 1.28 | 6.84 | 0.43 | 4.67 | 6.62 | 3.25 | 1.42 |
| 1977 | Houston Astros | NL | MLB | HOU | 50 | 27 | 18 | 12 | 2.97 | 36 | 36 | 13 | 3 | 0 | 0 | 0 | 267.0 | 212 | 94 | 88 | 18 | 104 | 214 | 6 | 1 | 0 | 1.18 | 7.15 | 0.61 | 3.51 | 7.21 | 3.17 | 2.06 |
| 1978 | Houston Astros | NL | MLB | HOU | 50 | 28 | 18 | 11 | 3.11 | 36 | 36 | 16 | 3 | 0 | 0 | 0 | 275.1 | 192 | 104 | 95 | 12 | 141 | 303 | 16 | 3 | 2 | 1.21 | 6.28 | 0.39 | 4.61 | 9.90 | 3.40 | 2.15 |
| 1979 | Houston Astros | NL | MLB | HOU | 50 | 29 | 18 | 13 | 2.71 | 38 | 38 | 19 | 4 | 0 | 0 | 0 | 292.1 | 220 | 98 | 88 | 13 | 98 | 313 | 19 | 1 | 3 | 1.09 | 6.77 | 0.40 | 3.02 | 9.64 | 3.02 | 3.19 |
| 1980 | Houston Astros | NL | MLB | HOU | 50 | 30 | 10 | 4 | 1.90 | 17 | 17 | 4 | 4 | 0 | 0 | 0 | 113.2 | 65 | 31 | 24 | 2 | 40 | 119 | 2 | 0 | 0 | 0.92 | 5.15 | 0.16 | 3.17 | 9.42 | 2.45 | 2.98 |
| 1982 | Daytona Astros | FSL | A+ | HOU | - | 32 | 3 | 1 | 2.79 | 6 | 6 | 2 | 0 | 0 | 0 | 0 | 42.0 | 36 | 14 | 13 | 0 | 15 | 28 | 5 | 0 | 1 | 1.21 | 7.71 | 0.00 | 3.21 | 6.00 | 3.00 | 1.87 |
| 1982 | Tucson Toros | PCL | AAA | HOU | - | 32 | 0 | 2 | 13.68 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 24.1 | 35 | 45 | 37 | 1 | 27 | 13 | 10 | 0 | 1 | 2.55 | 12.95 | 0.37 | 9.99 | 4.81 | 16.64 | 0.48 |
| 1983 | Gulf Coast Astros | GCL | Rk | HOU | - | 33 | 2 | 3 | 3.18 | 9 | 9 | 1 | 0 | 0 | 0 | 0 | 51.0 | 44 | 23 | 18 | 0 | 31 | 46 | 8 | 0 | 1 | 1.47 | 7.76 | 0.00 | 5.47 | 8.12 | 4.06 | 1.48 |
| Tot: | MLB (10 yrs) | MLB | 107 | 71 | 3.15 | 238 | 221 | 76 | 19 | 3 | 17 | 0 | 1606.0 | 1227 | 625 | 562 | 73 | 770 | 1493 | 92 | 14 | 17 | 1.24 | 6.88 | 0.41 | 4.32 | 8.37 | 3.50 | 1.94 | ||||
| Tot: | NL (10 yrs) | NL | 107 | 71 | 3.15 | 238 | 221 | 76 | 19 | 3 | 17 | 0 | 1606.0 | 1227 | 625 | 562 | 73 | 770 | 1493 | 92 | 14 | 17 | 1.24 | 6.88 | 0.41 | 4.32 | 8.37 | 3.50 | 1.94 | ||||
| Tot: | Minors (2 yrs) | Minors | 5 | 6 | 5.22 | 21 | 21 | 3 | 0 | 0 | 0 | 0 | 117.1 | 115 | 82 | 68 | 1 | 73 | 87 | 23 | 0 | 3 | 1.60 | 8.82 | 0.08 | 5.60 | 6.67 | 6.29 | 1.19 | ||||
| Tot: | Rk (1 yrs) | Rk | 2 | 3 | 3.18 | 9 | 9 | 1 | 0 | 0 | 0 | 0 | 51.0 | 44 | 23 | 18 | 0 | 31 | 46 | 8 | 0 | 1 | 1.47 | 7.76 | 0.00 | 5.47 | 8.12 | 4.06 | 1.48 | ||||
| Tot: | A+ (1 yrs) | A+ | 3 | 1 | 2.79 | 6 | 6 | 2 | 0 | 0 | 0 | 0 | 42.0 | 36 | 14 | 13 | 0 | 15 | 28 | 5 | 0 | 1 | 1.21 | 7.71 | 0.00 | 3.21 | 6.00 | 3.00 | 1.87 | ||||
| Tot: | AAA (1 yrs) | AAA | 0 | 2 | 13.68 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 24.1 | 35 | 45 | 37 | 1 | 27 | 13 | 10 | 0 | 1 | 2.55 | 12.95 | 0.37 | 9.99 | 4.81 | 16.64 | 0.48 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | category | 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 |
| 1980 | National League | Major League Baseball | AllStar | 30 | 0 | 0 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 1.50 | 4.50 | 0.00 | 9.00 | 13.50 | 0.00 | 1.50 |
| Tot: | AllStar (1 Yrs) | AllStar | 0 | 0 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 1.50 | 4.50 | 0.00 | 9.00 | 13.50 | 0.00 | 1.50 |
| 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 |
| 1971 | Houston Astros | NL | MLB | HOU | 50 | 21 | P | 4 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 44.44 | 0.00 | 0.00 | |
| 1973 | Houston Astros | NL | MLB | HOU | 50 | 23 | P | 16 | 28 | 2 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 12 | 0 | 1 | 0 | 0 | 0 | 5 | 29 | 0 | 5 | .179 | .179 | .179 | .358 | .000 | .000 | .313 | 0.00 | 41.38 | 0.00 | 0.00 | |
| 1974 | Houston Astros | NL | MLB | HOU | 50 | 24 | P | 15 | 21 | 1 | 3 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 9 | 0 | 1 | 0 | 0 | 2 | 6 | 22 | 1 | 2 | .143 | .143 | .286 | .429 | .143 | .143 | .182 | 0.00 | 40.91 | 0.00 | 21.00 | |
| 1975 | Houston Astros | NL | MLB | HOU | 50 | 25 | P | 33 | 74 | 4 | 15 | 6 | 0 | 1 | 13 | 0 | 0 | 1 | 29 | 0 | 5 | 0 | 0 | 2 | 24 | 80 | 7 | 8 | .203 | .213 | .324 | .537 | .135 | .121 | .318 | 1.25 | 36.25 | 29.00 | 74.00 | |
| 1976 | Houston Astros | NL | MLB | HOU | 50 | 26 | P | 39 | 100 | 6 | 14 | 1 | 0 | 2 | 9 | 0 | 0 | 0 | 33 | 1 | 1 | 2 | 0 | 0 | 21 | 104 | 3 | 11 | .140 | .146 | .210 | .356 | .070 | .070 | .179 | 0.00 | 31.73 | 0.00 | 50.00 | |
| 1977 | Houston Astros | NL | MLB | HOU | 50 | 27 | P | 36 | 87 | 10 | 20 | 0 | 2 | 2 | 7 | 1 | 0 | 1 | 28 | 1 | 11 | 0 | 0 | 1 | 30 | 100 | 4 | 16 | .230 | .247 | .345 | .592 | .138 | .115 | .316 | 1.00 | 28.00 | 28.00 | 43.50 | |
| 1978 | Houston Astros | NL | MLB | HOU | 50 | 28 | P | 37 | 101 | 8 | 18 | 0 | 0 | 1 | 10 | 1 | 1 | 1 | 27 | 0 | 5 | 0 | 0 | 2 | 21 | 107 | 1 | 17 | .178 | .186 | .208 | .394 | .040 | .030 | .233 | 0.93 | 25.23 | 27.00 | 101.00 | |
| 1979 | Houston Astros | NL | MLB | HOU | 50 | 29 | P | 38 | 95 | 6 | 12 | 1 | 1 | 2 | 6 | 0 | 1 | 1 | 24 | 0 | 11 | 1 | 0 | 4 | 21 | 108 | 4 | 8 | .126 | .134 | .221 | .355 | .095 | .095 | .143 | 0.93 | 22.22 | 24.00 | 47.50 | |
| 1980 | Houston Astros | NL | MLB | HOU | 50 | 30 | P | 17 | 39 | 2 | 6 | 2 | 0 | 1 | 3 | 0 | 0 | 0 | 15 | 0 | 4 | 0 | 0 | 0 | 11 | 43 | 3 | 3 | .154 | .154 | .282 | .436 | .128 | .128 | .217 | 0.00 | 34.88 | 0.00 | 39.00 | |
| Tot: | MLB (9 yrs) | MLB | 235 | 552 | 39 | 93 | 10 | 3 | 10 | 50 | 2 | 2 | 4 | 181 | 2 | 41 | 3 | 0 | 11 | 139 | 602 | 23 | 70 | .168 | .176 | .252 | .428 | .091 | .083 | .228 | 0.66 | 30.07 | 45.25 | 55.20 | ||||||
| Tot: | NL (9 yrs) | NL | 235 | 552 | 39 | 93 | 10 | 3 | 10 | 50 | 2 | 2 | 4 | 181 | 2 | 41 | 3 | 0 | 11 | 139 | 602 | 23 | 70 | .168 | .176 | .252 | .428 | .091 | .083 | .228 | 0.66 | 30.07 | 45.25 | 55.20 | ||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 88 | 26 | 85 | 64 | 85 | 62 | .493 |