| 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 | Arizona State | WAC | NCAA-1 | 18 | 4 | 3 | 3.30 | 13 | 4 | 2 | 0 | 9 | 0 | 0 | 57.1 | 42 | 28 | 21 | 0 | 33 | 57 | 0 | 0 | 0 | 1.31 | 6.59 | 0.00 | 5.18 | 8.95 | 4.40 | 1.73 | ||
| 1973 | Houston Astros | NL | MLB | HOU | 30 | 22 | 2 | 4 | 4.50 | 48 | 0 | 0 | 0 | 48 | 20 | 6 | 70.0 | 69 | 41 | 35 | 7 | 33 | 56 | 7 | 1 | 2 | 1.46 | 8.87 | 0.90 | 4.24 | 7.20 | 5.27 | 1.70 |
| 1975 | Houston Astros | NL | MLB | HOU | 30 | 24 | 3 | 5 | 3.63 | 44 | 2 | 0 | 0 | 42 | 19 | 4 | 86.2 | 92 | 40 | 35 | 0 | 37 | 37 | 5 | 1 | 2 | 1.49 | 9.55 | 0.00 | 3.84 | 3.84 | 4.15 | 1.00 |
| 1976 | Detroit Tigers | AL | MLB | DET | 28 | 25 | 1 | 8 | 4.53 | 32 | 5 | 1 | 0 | 27 | 11 | 2 | 109.1 | 115 | 65 | 55 | 4 | 43 | 68 | 7 | 0 | 0 | 1.45 | 9.47 | 0.33 | 3.54 | 5.60 | 5.35 | 1.58 |
| 1977 | Detroit Tigers | AL | MLB | DET | 28 | 26 | 7 | 8 | 4.79 | 37 | 7 | 0 | 0 | 30 | 12 | 1 | 126.0 | 156 | 82 | 67 | 13 | 50 | 91 | 6 | 3 | 1 | 1.63 | 11.14 | 0.93 | 3.57 | 6.50 | 5.86 | 1.82 |
| 1978 | Evansville Triplets | Amer | AAA | DET | - | 27 | 1 | 2 | 7.50 | 5 | 3 | 0 | 0 | 2 | 0 | 0 | 18.0 | 29 | 15 | 15 | 5 | 8 | 12 | 0 | 0 | 0 | 2.06 | 14.50 | 2.50 | 4.00 | 6.00 | 7.50 | 1.50 |
| 1978 | Detroit Tigers | AL | MLB | DET | 28 | 27 | 2 | 3 | 4.35 | 20 | 0 | 0 | 0 | 20 | 10 | 0 | 39.1 | 45 | 24 | 19 | 3 | 19 | 24 | 7 | 0 | 2 | 1.63 | 10.30 | 0.69 | 4.35 | 5.49 | 5.49 | 1.26 |
| Tot: | MLB (5 yrs) | MLB | 15 | 28 | 4.40 | 181 | 14 | 1 | 0 | 72 | 167 | 13 | 431.1 | 477 | 252 | 211 | 27 | 182 | 276 | 32 | 5 | 7 | 1.53 | 9.95 | 0.56 | 3.80 | 5.76 | 5.26 | 1.52 | ||||
| Tot: | NL (2 yrs) | NL | 5 | 9 | 4.02 | 92 | 2 | 0 | 0 | 39 | 90 | 10 | 156.2 | 161 | 81 | 70 | 7 | 70 | 93 | 12 | 2 | 4 | 1.47 | 9.25 | 0.40 | 4.02 | 5.34 | 4.65 | 1.33 | ||||
| Tot: | AL (3 yrs) | AL | 10 | 19 | 4.62 | 89 | 12 | 1 | 0 | 33 | 77 | 3 | 274.2 | 316 | 171 | 141 | 20 | 112 | 183 | 20 | 3 | 3 | 1.56 | 10.35 | 0.66 | 3.67 | 6.00 | 5.60 | 1.63 | ||||
| Tot: | Minors (1 yrs) | Minors | 1 | 2 | 7.50 | 5 | 3 | 0 | 0 | 0 | 2 | 0 | 18.0 | 29 | 15 | 15 | 5 | 8 | 12 | 0 | 0 | 0 | 2.06 | 14.50 | 2.50 | 4.00 | 6.00 | 7.50 | 1.50 | ||||
| Tot: | AAA (1 yrs) | AAA | 1 | 2 | 7.50 | 5 | 3 | 0 | 0 | 0 | 2 | 0 | 18.0 | 29 | 15 | 15 | 5 | 8 | 12 | 0 | 0 | 0 | 2.06 | 14.50 | 2.50 | 4.00 | 6.00 | 7.50 | 1.50 | ||||
| Tot: | College (1 yrs) | College | 4 | 3 | 3.30 | 13 | 4 | 2 | 0 | 0 | 9 | 0 | 57.1 | 42 | 28 | 21 | 0 | 33 | 57 | 0 | 0 | 0 | 1.31 | 6.59 | 0.00 | 5.18 | 8.95 | 4.40 | 1.73 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | Minors | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | College - 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 |
| 1973 | Houston Astros | NL | MLB | HOU | 30 | 22 | P | 48 | 13 | 1 | 3 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 0 | 0 | 4 | 14 | 1 | 2 | .231 | .286 | .308 | .594 | .154 | .077 | .500 | 7.14 | 50.00 | 7.00 | 0.00 | |
| 1975 | Houston Astros | NL | MLB | HOU | 30 | 24 | P | 44 | 17 | 1 | 5 | 1 | 0 | 0 | 2 | 0 | 0 | 2 | 3 | 0 | 1 | 0 | 0 | 1 | 6 | 20 | 1 | 4 | .294 | .368 | .353 | .721 | .176 | .059 | .357 | 10.00 | 15.00 | 1.50 | 0.00 | |
| Tot: | MLB (2 yrs) | MLB | 92 | 30 | 2 | 8 | 2 | 0 | 0 | 3 | 0 | 0 | 3 | 10 | 0 | 1 | 0 | 0 | 1 | 10 | 34 | 2 | 6 | .267 | .333 | .333 | .667 | .167 | .067 | .400 | 8.82 | 29.41 | 3.33 | |||||||
| Tot: | NL (2 yrs) | NL | 92 | 30 | 2 | 8 | 2 | 0 | 0 | 3 | 0 | 0 | 3 | 10 | 0 | 1 | 0 | 0 | 1 | 10 | 34 | 2 | 6 | .267 | .333 | .333 | .667 | .167 | .067 | .400 | 8.82 | 29.41 | 3.33 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 64 | 36 | 28 | 51 | 28 | 64 | .518 |