| 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 | Kansas City Royals | AL | MLB | KCA | 40 | 22 | 1 | 1 | 3.38 | 4 | 0 | 0 | 0 | 4 | 3 | 0 | 8.0 | 5 | 3 | 3 | 2 | 2 | 6 | 0 | 0 | 0 | 0.88 | 5.63 | 2.25 | 2.25 | 6.75 | 3.38 | 3.00 |
| 1971 | Kansas City Royals | AL | MLB | KCA | 40 | 23 | 5 | 5 | 2.89 | 53 | 0 | 0 | 0 | 53 | 21 | 3 | 93.1 | 70 | 32 | 30 | 7 | 44 | 103 | 4 | 0 | 3 | 1.22 | 6.75 | 0.68 | 4.24 | 9.93 | 3.09 | 2.34 |
| 1972 | Houston Astros | NL | MLB | HOU | 42 | 24 | 0 | 1 | 5.25 | 26 | 0 | 0 | 0 | 26 | 14 | 0 | 36.0 | 45 | 21 | 21 | 3 | 18 | 25 | 3 | 0 | 1 | 1.75 | 11.25 | 0.75 | 4.50 | 6.25 | 5.25 | 1.39 |
| 1973 | Houston Astros | NL | MLB | HOU | 42 | 25 | 3 | 4 | 4.42 | 41 | 0 | 0 | 0 | 41 | 27 | 6 | 53.0 | 65 | 26 | 26 | 4 | 20 | 22 | 3 | 0 | 1 | 1.60 | 11.04 | 0.68 | 3.40 | 3.74 | 4.42 | 1.10 |
| 1974 | Houston Astros | NL | MLB | HOU | 42 | 26 | 2 | 2 | 3.29 | 28 | 0 | 0 | 0 | 28 | 8 | 1 | 38.1 | 48 | 20 | 14 | 1 | 19 | 15 | 1 | 1 | 1 | 1.75 | 11.27 | 0.23 | 4.46 | 3.52 | 4.70 | 0.79 |
| 1975 | Houston Astros | NL | MLB | HOU | 42 | 27 | 4 | 4 | 3.86 | 19 | 4 | 0 | 0 | 15 | 6 | 0 | 46.2 | 43 | 22 | 20 | 1 | 25 | 17 | 1 | 1 | 5 | 1.46 | 8.29 | 0.19 | 4.82 | 3.28 | 4.24 | 0.68 |
| 1976 | Iowa Oaks | Amer | AAA | CHA | - | 28 | 0 | 1 | 5.79 | 5 | 2 | 0 | 0 | 3 | 0 | 0 | 14.0 | 15 | 10 | 9 | 0 | 7 | 4 | 2 | 0 | 1 | 1.57 | 9.64 | 0.00 | 4.50 | 2.57 | 6.43 | 0.57 |
| 1976 | Syracuse Chiefs | IL | AAA | NYA | - | 28 | 6 | 1 | 5.34 | 22 | 1 | 0 | 0 | 21 | 0 | 0 | 59.0 | 74 | 42 | 35 | 6 | 22 | 24 | 4 | 0 | 3 | 1.63 | 11.29 | 0.92 | 3.36 | 3.66 | 6.41 | 1.09 |
| 1976 | New York Yankees | AL | MLB | NYA | 43 | 28 | 1 | 0 | 5.59 | 3 | 0 | 0 | 0 | 3 | 1 | 0 | 9.2 | 14 | 7 | 6 | 1 | 4 | 6 | 2 | 0 | 1 | 1.86 | 13.03 | 0.93 | 3.72 | 5.59 | 6.52 | 1.50 |
| Tot: | MLB (7 yrs) | MLB | 16 | 17 | 3.79 | 174 | 4 | 0 | 0 | 80 | 170 | 10 | 285.0 | 290 | 131 | 120 | 19 | 132 | 194 | 14 | 2 | 12 | 1.48 | 9.16 | 0.60 | 4.17 | 6.13 | 4.14 | 1.47 | ||||
| Tot: | AL (3 yrs) | AL | 7 | 6 | 3.16 | 60 | 0 | 0 | 0 | 25 | 60 | 3 | 111.0 | 89 | 42 | 39 | 10 | 50 | 115 | 6 | 0 | 4 | 1.25 | 7.22 | 0.81 | 4.05 | 9.32 | 3.41 | 2.30 | ||||
| Tot: | NL (4 yrs) | NL | 9 | 11 | 4.19 | 114 | 4 | 0 | 0 | 55 | 110 | 7 | 174.0 | 201 | 89 | 81 | 9 | 82 | 79 | 8 | 2 | 8 | 1.63 | 10.40 | 0.47 | 4.24 | 4.09 | 4.60 | 0.96 | ||||
| Tot: | Minors (1 yrs) | Minors | 6 | 2 | 5.42 | 27 | 3 | 0 | 0 | 0 | 24 | 0 | 73.0 | 89 | 52 | 44 | 6 | 29 | 28 | 6 | 0 | 4 | 1.62 | 10.97 | 0.74 | 3.58 | 3.45 | 6.41 | 0.97 | ||||
| Tot: | AAA (1 yrs) | AAA | 6 | 2 | 5.42 | 27 | 3 | 0 | 0 | 0 | 24 | 0 | 73.0 | 89 | 52 | 44 | 6 | 29 | 28 | 6 | 0 | 4 | 1.62 | 10.97 | 0.74 | 3.58 | 3.45 | 6.41 | 0.97 | ||||
| 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 | Kansas City Royals | AL | MLB | KCA | 40 | 22 | P | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1971 | Kansas City Royals | AL | MLB | KCA | 40 | 23 | P | 53 | 17 | 1 | 2 | 1 | 0 | 1 | 3 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 0 | 0 | 6 | 18 | 2 | 0 | .118 | .167 | .353 | .520 | .294 | .235 | .111 | 5.56 | 38.89 | 7.00 | 17.00 | |
| 1972 | Houston Astros | NL | MLB | HOU | 42 | 24 | P | 26 | 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 | |
| 1973 | Houston Astros | NL | MLB | HOU | 42 | 25 | P | 41 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .167 | .000 | .167 | .200 | .000 | .000 | 14.29 | 28.57 | 2.00 | 0.00 | |
| 1974 | Houston Astros | NL | MLB | HOU | 42 | 26 | P | 28 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 75.00 | 0.00 | 0.00 | |
| 1975 | Houston Astros | NL | MLB | HOU | 42 | 27 | P | 19 | 11 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 0 | 0 | 0 | 0 | 1 | 12 | 0 | 1 | .091 | .167 | .091 | .258 | .091 | .000 | .167 | 8.33 | 41.67 | 5.00 | 0.00 | |
| 1976 | Iowa Oaks | Amer | AAA | CHA | - | 28 | P | 5 | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 1 | 1 | .500 | .500 | .750 | 1.250 | .250 | .250 | .500 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (6 yrs) | MLB | 171 | 40 | 2 | 3 | 1 | 0 | 1 | 3 | 0 | 0 | 3 | 18 | 0 | 1 | 0 | 0 | 0 | 7 | 44 | 2 | 1 | .075 | .140 | .175 | .315 | .175 | .100 | .095 | 6.82 | 40.91 | 6.00 | 40.00 | ||||||
| Tot: | AL (2 yrs) | AL | 57 | 19 | 1 | 2 | 1 | 0 | 1 | 3 | 0 | 0 | 1 | 8 | 0 | 0 | 0 | 0 | 0 | 6 | 20 | 2 | 0 | .105 | .150 | .316 | .466 | .263 | .211 | .100 | 5.00 | 40.00 | 8.00 | 19.00 | ||||||
| Tot: | NL (4 yrs) | NL | 114 | 21 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 10 | 0 | 1 | 0 | 0 | 0 | 1 | 24 | 0 | 1 | .048 | .130 | .048 | .178 | .095 | .000 | .091 | 8.33 | 41.67 | 5.00 | |||||||
| Tot: | Minors (1 yrs) | Minors | 5 | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 1 | 1 | .500 | .500 | .750 | 1.250 | .250 | .250 | .500 | 0.00 | 0.00 | ||||||||
| Tot: | AAA (1 yrs) | AAA | 5 | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 1 | 1 | .500 | .500 | .750 | 1.250 | .250 | .250 | .500 | 0.00 | 0.00 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 37 | 34 | 34 | 29 | 34 | 46 | .522 |