| 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 |
| 1965 | Houston Astros | NL | MLB | HOU | 41 | 23 | 0 | 1 | 3.68 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 7.1 | 5 | 3 | 3 | 0 | 3 | 4 | 0 | 0 | 0 | 1.09 | 6.14 | 0.00 | 3.68 | 4.91 | 3.68 | 1.33 |
| 1966 | Houston Astros | NL | MLB | HOU | 41 | 24 | 1 | 2 | 3.00 | 24 | 0 | 0 | 0 | 24 | 11 | 1 | 33.0 | 36 | 11 | 11 | 3 | 16 | 21 | 3 | 0 | 0 | 1.58 | 9.82 | 0.82 | 4.36 | 5.73 | 3.00 | 1.31 |
| 1967 | Houston Astros | NL | MLB | HOU | 41 | 25 | 2 | 6 | 4.83 | 45 | 0 | 0 | 0 | 45 | 15 | 3 | 59.2 | 66 | 39 | 32 | 7 | 19 | 48 | 2 | 0 | 1 | 1.42 | 9.96 | 1.06 | 2.87 | 7.24 | 5.88 | 2.53 |
| 1969 | Montreal Expos | NL | MLB | MON | 28 | 27 | 0 | 2 | 3.55 | 23 | 0 | 0 | 0 | 23 | 11 | 2 | 33.0 | 28 | 14 | 13 | 1 | 24 | 15 | 2 | 0 | 2 | 1.58 | 7.64 | 0.27 | 6.55 | 4.09 | 3.82 | 0.63 |
| 1970 | Montreal Expos | NL | MLB | MON | 28 | 28 | 0 | 0 | 18.90 | 5 | 0 | 0 | 0 | 5 | 4 | 0 | 6.2 | 14 | 14 | 14 | 2 | 11 | 6 | 4 | 0 | 1 | 3.75 | 18.90 | 2.70 | 14.85 | 8.10 | 18.90 | 0.55 |
| Tot: | MLB (5 yrs) | MLB | 3 | 11 | 4.70 | 99 | 1 | 0 | 0 | 41 | 98 | 6 | 139.2 | 149 | 81 | 73 | 13 | 73 | 94 | 11 | 0 | 4 | 1.59 | 9.60 | 0.84 | 4.70 | 6.06 | 5.22 | 1.29 | ||||
| Tot: | NL (5 yrs) | NL | 3 | 11 | 4.70 | 99 | 1 | 0 | 0 | 41 | 98 | 6 | 139.2 | 149 | 81 | 73 | 13 | 73 | 94 | 11 | 0 | 4 | 1.59 | 9.60 | 0.84 | 4.70 | 6.06 | 5.22 | 1.29 | ||||
| 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 |
| 1965 | Houston Astros | NL | MLB | HOU | 41 | 23 | P | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| 1966 | Houston Astros | NL | MLB | HOU | 41 | 24 | P | 24 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1967 | Houston Astros | NL | MLB | HOU | 41 | 25 | P | 45 | 7 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 8 | 0 | 1 | .143 | .143 | .143 | .286 | .000 | .000 | .250 | 0.00 | 37.50 | 0.00 | 0.00 | |
| 1969 | Montreal Expos | NL | MLB | MON | 28 | 27 | P | 23 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 1 | .250 | .250 | .250 | .500 | .000 | .000 | .250 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (4 yrs) | MLB | 94 | 15 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 2 | 0 | 0 | 0 | 2 | 17 | 0 | 2 | .133 | .133 | .133 | .267 | .000 | .000 | .222 | 0.00 | 35.29 | ||||||||
| Tot: | NL (4 yrs) | NL | 94 | 15 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 2 | 0 | 0 | 0 | 2 | 17 | 0 | 2 | .133 | .133 | .133 | .267 | .000 | .000 | .222 | 0.00 | 35.29 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 49 | 25 | 37 | 33 | 37 | 34 | .409 |