| 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 |
| 1968 | Cincinnati Reds | NL | MLB | CIN | 31 | 24 | 0 | 1 | 5.25 | 14 | 0 | 0 | 0 | 14 | 2 | 0 | 12.0 | 13 | 7 | 7 | 1 | 11 | 16 | 2 | 0 | 1 | 2.00 | 9.75 | 0.75 | 8.25 | 12.00 | 5.25 | 1.45 |
| 1969 | Montreal Expos | NL | MLB | MON | 25 | 25 | 7 | 10 | 3.94 | 74 | 1 | 0 | 0 | 73 | 25 | 6 | 132.1 | 123 | 67 | 58 | 8 | 65 | 112 | 10 | 1 | 5 | 1.42 | 8.37 | 0.54 | 4.42 | 7.62 | 4.56 | 1.72 |
| 1970 | Montreal Expos | NL | MLB | MON | 25 | 26 | 7 | 10 | 5.44 | 52 | 19 | 3 | 2 | 33 | 12 | 0 | 130.2 | 154 | 88 | 79 | 13 | 78 | 83 | 6 | 1 | 7 | 1.78 | 10.61 | 0.90 | 5.37 | 5.72 | 6.06 | 1.06 |
| 1971 | Montreal Expos | NL | MLB | MON | 25 | 27 | 1 | 4 | 5.96 | 28 | 6 | 1 | 0 | 22 | 6 | 0 | 71.0 | 74 | 51 | 47 | 7 | 42 | 40 | 2 | 0 | 1 | 1.63 | 9.38 | 0.89 | 5.32 | 5.07 | 6.46 | 0.95 |
| 1972 | Chicago Cubs | NL | MLB | CHN | 30 | 28 | 0 | 5 | 5.89 | 42 | 2 | 0 | 0 | 40 | 19 | 4 | 62.2 | 78 | 46 | 41 | 5 | 29 | 42 | 4 | 0 | 4 | 1.71 | 11.20 | 0.72 | 4.16 | 6.03 | 6.61 | 1.45 |
| Tot: | MLB (5 yrs) | MLB | 15 | 30 | 5.11 | 210 | 28 | 4 | 2 | 64 | 182 | 10 | 408.2 | 442 | 259 | 232 | 34 | 225 | 293 | 24 | 2 | 18 | 1.63 | 9.73 | 0.75 | 4.96 | 6.45 | 5.70 | 1.30 | ||||
| Tot: | NL (5 yrs) | NL | 15 | 30 | 5.11 | 210 | 28 | 4 | 2 | 64 | 182 | 10 | 408.2 | 442 | 259 | 232 | 34 | 225 | 293 | 24 | 2 | 18 | 1.63 | 9.73 | 0.75 | 4.96 | 6.45 | 5.70 | 1.30 | ||||
| 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 |
| 1968 | Cincinnati Reds | NL | MLB | CIN | 31 | 24 | P | 14 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1969 | Montreal Expos | NL | MLB | MON | 25 | 25 | P | 74 | 29 | 3 | 5 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 8 | 29 | 1 | 4 | .172 | .172 | .276 | .448 | .103 | .104 | .222 | 0.00 | 34.48 | 0.00 | 29.00 | |
| 1970 | Montreal Expos | NL | MLB | MON | 25 | 26 | P | 52 | 35 | 2 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 14 | 0 | 3 | 0 | 0 | 1 | 4 | 38 | 0 | 4 | .114 | .114 | .114 | .228 | .000 | .000 | .190 | 0.00 | 36.84 | 0.00 | 0.00 | |
| 1971 | Montreal Expos | NL | MLB | MON | 25 | 27 | P | 28 | 17 | 2 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 17 | 0 | 4 | .235 | .235 | .235 | .470 | .000 | .000 | .308 | 0.00 | 23.53 | 0.00 | 0.00 | |
| 1972 | Chicago Cubs | NL | MLB | CHN | 30 | 28 | P | 43 | 8 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 8 | 1 | 1 | .250 | .250 | .500 | .750 | .250 | .250 | .286 | 0.00 | 12.50 | 0.00 | 0.00 | |
| Tot: | MLB (5 yrs) | MLB | 211 | 91 | 7 | 15 | 0 | 1 | 1 | 6 | 0 | 0 | 0 | 29 | 0 | 3 | 0 | 0 | 1 | 20 | 94 | 2 | 13 | .165 | .165 | .220 | .385 | .055 | .055 | .230 | 0.00 | 30.85 | 91.00 | |||||||
| Tot: | NL (5 yrs) | NL | 211 | 91 | 7 | 15 | 0 | 1 | 1 | 6 | 0 | 0 | 0 | 29 | 0 | 3 | 0 | 0 | 1 | 20 | 94 | 2 | 13 | .165 | .165 | .220 | .385 | .055 | .055 | .230 | 0.00 | 30.85 | 91.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 64 | 20 | 25 | 34 | 25 | 72 | .454 |