| 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 |
| 1974 | Minnesota Twins | AL | MLB | MIN | 31 | 22 | 0 | 2 | 5.23 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 10.1 | 8 | 8 | 6 | 2 | 4 | 8 | 1 | 1 | 0 | 1.16 | 6.97 | 1.74 | 3.48 | 6.97 | 6.97 | 2.00 |
| 1975 | Minnesota Twins | AL | MLB | MIN | 31 | 23 | 16 | 14 | 3.82 | 37 | 34 | 12 | 2 | 3 | 1 | 0 | 249.2 | 241 | 119 | 106 | 17 | 127 | 130 | 10 | 2 | 13 | 1.47 | 8.69 | 0.61 | 4.58 | 4.69 | 4.29 | 1.02 |
| 1976 | Minnesota Twins | AL | MLB | MIN | 31 | 24 | 9 | 14 | 4.98 | 37 | 26 | 3 | 0 | 11 | 8 | 0 | 177.0 | 190 | 113 | 98 | 17 | 73 | 87 | 9 | 2 | 8 | 1.49 | 9.66 | 0.86 | 3.71 | 4.42 | 5.75 | 1.19 |
| 1977 | Tacoma Twins | PCL | AAA | MIN | - | 25 | 9 | 10 | 5.15 | 30 | 22 | 6 | 0 | 8 | 0 | 1 | 159.0 | 177 | 106 | 91 | 20 | 104 | 76 | 6 | 0 | 0 | 1.77 | 10.02 | 1.13 | 5.89 | 4.30 | 6.00 | 0.73 |
| 1977 | Minnesota Twins | AL | MLB | MIN | 31 | 25 | 0 | 0 | 2.08 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 4.1 | 4 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1.15 | 8.31 | 0.00 | 2.08 | 2.08 | 2.08 | 1.00 |
| 1978 | Tucson Toros | PCL | AAA | TEX | - | 26 | 1 | 2 | 8.10 | 8 | 6 | 0 | 0 | 2 | 0 | 0 | 30.0 | 43 | 32 | 27 | 2 | 24 | 10 | 4 | 0 | 0 | 2.23 | 12.90 | 0.60 | 7.20 | 3.00 | 9.60 | 0.42 |
| 1979 | Albuquerque Dukes | PCL | AAA | LAN | - | 27 | 3 | 1 | 3.00 | 17 | 0 | 0 | 0 | 17 | 0 | 1 | 36.0 | 34 | 14 | 12 | 2 | 24 | 27 | 2 | 0 | 0 | 1.61 | 8.50 | 0.50 | 6.00 | 6.75 | 3.50 | 1.13 |
| Tot: | MLB (4 yrs) | MLB | 25 | 30 | 4.30 | 78 | 62 | 16 | 2 | 11 | 16 | 0 | 441.1 | 443 | 241 | 211 | 36 | 205 | 226 | 20 | 5 | 21 | 1.47 | 9.03 | 0.73 | 4.18 | 4.61 | 4.91 | 1.10 | ||||
| Tot: | AL (4 yrs) | AL | 25 | 30 | 4.30 | 78 | 62 | 16 | 2 | 11 | 16 | 0 | 441.1 | 443 | 241 | 211 | 36 | 205 | 226 | 20 | 5 | 21 | 1.47 | 9.03 | 0.73 | 4.18 | 4.61 | 4.91 | 1.10 | ||||
| Tot: | Minors (3 yrs) | Minors | 13 | 13 | 5.20 | 55 | 28 | 6 | 0 | 0 | 27 | 2 | 225.0 | 254 | 152 | 130 | 24 | 152 | 113 | 12 | 0 | 0 | 1.80 | 10.16 | 0.96 | 6.08 | 4.52 | 6.08 | 0.74 | ||||
| Tot: | AAA (3 yrs) | AAA | 13 | 13 | 5.20 | 55 | 28 | 6 | 0 | 0 | 27 | 2 | 225.0 | 254 | 152 | 130 | 24 | 152 | 113 | 12 | 0 | 0 | 1.80 | 10.16 | 0.96 | 6.08 | 4.52 | 6.08 | 0.74 | ||||
| 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 |
| Tot: | Minors (1 yrs) | Minors | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | AAA (1 yrs) | AAA | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 37 | 22 | 36 | 22 | 36 | 49 | .509 |