| 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 | Houston Astros | NL | MLB | HOU | 37 | 21 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2.0 | 1 | 1 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 1.00 | 4.50 | 0.00 | 4.50 | 18.00 | 4.50 | 4.00 |
| 1970 | Houston Astros | NL | MLB | HOU | 37 | 22 | 0 | 1 | 9.88 | 5 | 2 | 0 | 0 | 3 | 1 | 0 | 13.2 | 17 | 15 | 15 | 5 | 9 | 6 | 1 | 1 | 0 | 1.90 | 11.20 | 3.29 | 5.93 | 3.95 | 9.88 | 0.67 |
| 1971 | Houston Astros | NL | MLB | HOU | 37 | 23 | 1 | 0 | 3.68 | 5 | 3 | 1 | 0 | 2 | 0 | 0 | 29.1 | 22 | 12 | 12 | 2 | 13 | 26 | 1 | 0 | 1 | 1.19 | 6.75 | 0.61 | 3.99 | 7.98 | 3.68 | 2.00 |
| 1972 | St. Louis Cardinals | NL | MLB | SLN | 24 | 24 | 5 | 5 | 2.67 | 16 | 16 | 6 | 0 | 0 | 0 | 0 | 118.0 | 96 | 39 | 35 | 5 | 59 | 93 | 7 | 0 | 2 | 1.31 | 7.32 | 0.38 | 4.50 | 7.09 | 2.97 | 1.58 |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 24 | 25 | 1 | 5 | 4.89 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 38.2 | 39 | 25 | 21 | 4 | 25 | 25 | 0 | 0 | 0 | 1.66 | 9.08 | 0.93 | 5.82 | 5.82 | 5.82 | 1.00 |
| Tot: | MLB (5 yrs) | MLB | 7 | 11 | 3.70 | 35 | 29 | 7 | 0 | 1 | 6 | 0 | 201.2 | 175 | 92 | 83 | 16 | 107 | 154 | 9 | 1 | 3 | 1.40 | 7.81 | 0.71 | 4.78 | 6.87 | 4.11 | 1.44 | ||||
| Tot: | NL (5 yrs) | NL | 7 | 11 | 3.70 | 35 | 29 | 7 | 0 | 1 | 6 | 0 | 201.2 | 175 | 92 | 83 | 16 | 107 | 154 | 9 | 1 | 3 | 1.40 | 7.81 | 0.71 | 4.78 | 6.87 | 4.11 | 1.44 | ||||
| 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 | Houston Astros | NL | MLB | HOU | 37 | 22 | P | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1971 | Houston Astros | NL | MLB | HOU | 37 | 23 | P | 5 | 9 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 9 | 0 | 2 | .222 | .222 | .222 | .444 | .000 | .000 | .400 | 0.00 | 44.44 | 0.00 | 0.00 | |
| 1972 | St. Louis Cardinals | NL | MLB | SLN | 24 | 24 | P | 21 | 42 | 4 | 7 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 21 | 0 | 2 | 0 | 0 | 0 | 7 | 44 | 0 | 7 | .167 | .167 | .167 | .334 | -0.024 | .000 | .333 | 0.00 | 47.73 | 0.00 | 0.00 | |
| 1973 | St. Louis Cardinals | NL | MLB | SLN | 24 | 25 | P | 8 | 11 | 2 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 7 | 0 | 1 | 0 | 0 | 0 | 5 | 13 | 1 | 1 | .182 | .250 | .455 | .705 | .364 | .273 | .333 | 7.69 | 53.85 | 7.00 | 11.00 | |
| Tot: | MLB (4 yrs) | MLB | 40 | 65 | 8 | 11 | 0 | 0 | 1 | 3 | 0 | 1 | 1 | 33 | 0 | 3 | 0 | 0 | 0 | 14 | 69 | 1 | 10 | .169 | .182 | .215 | .397 | .046 | .046 | .323 | 1.45 | 47.83 | 33.00 | 65.00 | ||||||
| Tot: | NL (4 yrs) | NL | 40 | 65 | 8 | 11 | 0 | 0 | 1 | 3 | 0 | 1 | 1 | 33 | 0 | 3 | 0 | 0 | 0 | 14 | 69 | 1 | 10 | .169 | .182 | .215 | .397 | .046 | .046 | .323 | 1.45 | 47.83 | 33.00 | 65.00 | ||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 83 | 22 | 71 | 47 | 71 | 18 | .491 |