| 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 | Montreal Expos | NL | MLB | MON | 21 | 24 | 11 | 12 | 3.90 | 31 | 25 | 8 | 2 | 6 | 3 | 0 | 177.2 | 150 | 85 | 77 | 9 | 87 | 98 | 18 | 0 | 8 | 1.33 | 7.60 | 0.46 | 4.41 | 4.96 | 4.31 | 1.13 |
| 1972 | Montreal Expos | NL | MLB | MON | 21 | 25 | 6 | 15 | 3.81 | 29 | 27 | 4 | 2 | 2 | 0 | 0 | 170.0 | 165 | 79 | 72 | 13 | 71 | 102 | 7 | 0 | 4 | 1.39 | 8.74 | 0.69 | 3.76 | 5.40 | 4.18 | 1.44 |
| 1973 | Montreal Expos | NL | MLB | MON | 21 | 26 | 7 | 9 | 4.04 | 27 | 24 | 4 | 0 | 3 | 1 | 0 | 147.0 | 158 | 84 | 66 | 13 | 54 | 72 | 7 | 0 | 3 | 1.44 | 9.67 | 0.80 | 3.31 | 4.41 | 5.14 | 1.33 |
| 1974 | Montreal Expos | NL | MLB | MON | 21 | 27 | 6 | 13 | 4.48 | 25 | 21 | 5 | 2 | 4 | 3 | 0 | 128.2 | 126 | 73 | 64 | 10 | 56 | 79 | 8 | 1 | 4 | 1.41 | 8.81 | 0.70 | 3.92 | 5.53 | 5.11 | 1.41 |
| Tot: | MLB (4 yrs) | MLB | 30 | 49 | 4.03 | 112 | 97 | 21 | 6 | 7 | 15 | 0 | 623.1 | 599 | 321 | 279 | 45 | 268 | 351 | 40 | 1 | 19 | 1.39 | 8.65 | 0.65 | 3.87 | 5.07 | 4.63 | 1.31 | ||||
| Tot: | NL (4 yrs) | NL | 30 | 49 | 4.03 | 112 | 97 | 21 | 6 | 7 | 15 | 0 | 623.1 | 599 | 321 | 279 | 45 | 268 | 351 | 40 | 1 | 19 | 1.39 | 8.65 | 0.65 | 3.87 | 5.07 | 4.63 | 1.31 | ||||
| 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 |
| 1971 | Montreal Expos | NL | MLB | MON | 21 | 24 | P | 31 | 60 | 6 | 7 | 0 | 0 | 1 | 5 | 0 | 0 | 1 | 22 | 0 | 3 | 1 | 0 | 1 | 10 | 65 | 1 | 6 | .117 | .129 | .167 | .296 | .067 | .050 | .158 | 1.54 | 33.85 | 22.00 | 60.00 | |
| 1972 | Montreal Expos | NL | MLB | MON | 21 | 25 | P | 29 | 53 | 4 | 6 | 1 | 0 | 0 | 3 | 0 | 0 | 2 | 17 | 0 | 5 | 1 | 0 | 0 | 7 | 61 | 1 | 5 | .113 | .143 | .132 | .275 | .057 | .019 | .162 | 3.28 | 27.87 | 8.50 | 0.00 | |
| 1973 | Montreal Expos | NL | MLB | MON | 21 | 26 | P | 27 | 49 | 3 | 9 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 11 | 0 | 4 | 0 | 0 | 2 | 9 | 53 | 0 | 9 | .184 | .184 | .184 | .368 | -0.020 | .000 | .237 | 0.00 | 20.75 | 0.00 | 0.00 | |
| 1974 | Montreal Expos | NL | MLB | MON | 21 | 27 | P | 25 | 42 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 16 | 0 | 2 | 0 | 0 | 0 | 5 | 45 | 0 | 5 | .119 | .140 | .119 | .259 | .024 | .000 | .192 | 2.22 | 35.56 | 16.00 | 0.00 | |
| Tot: | MLB (4 yrs) | MLB | 112 | 204 | 15 | 27 | 1 | 0 | 1 | 9 | 0 | 1 | 4 | 66 | 0 | 14 | 2 | 0 | 3 | 31 | 224 | 2 | 25 | .132 | .148 | .152 | .300 | .034 | .020 | .187 | 1.79 | 29.46 | 16.50 | 204.00 | ||||||
| Tot: | NL (4 yrs) | NL | 112 | 204 | 15 | 27 | 1 | 0 | 1 | 9 | 0 | 1 | 4 | 66 | 0 | 14 | 2 | 0 | 3 | 31 | 224 | 2 | 25 | .132 | .148 | .152 | .300 | .034 | .020 | .187 | 1.79 | 29.46 | 16.50 | 204.00 | ||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 48 | 40 | 47 | 41 | 47 | 80 | .467 |