| 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 | Arizona State | WAC | NCAA-1 | 18 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1.2 | 4 | 6 | 0 | 0 | 2 | 1 | 0 | 0 | 0 | 3.60 | 21.60 | 0.00 | 10.80 | 5.40 | 32.40 | 0.50 | ||
| 1977 | Arizona State | WAC | NCAA-1 | Sr | 21 | 10 | 4 | 3.15 | 17 | 15 | 4 | 1 | 2 | 0 | 0 | 111.1 | 98 | 55 | 39 | 0 | 52 | 107 | 0 | 0 | 0 | 1.35 | 7.92 | 0.00 | 4.20 | 8.65 | 4.45 | 2.06 | |
| 1978 | Orlando Twins | Sou | AA | MIN | - | 22 | 4 | 3 | 1.80 | 10 | 10 | 3 | 2 | 0 | 0 | 0 | 75.0 | 52 | 19 | 15 | 1 | 32 | 68 | 1 | 0 | 0 | 1.12 | 6.24 | 0.12 | 3.84 | 8.16 | 2.28 | 2.13 |
| 1978 | Minnesota Twins | AL | MLB | MIN | 31 | 22 | 4 | 6 | 4.48 | 19 | 15 | 1 | 1 | 4 | 1 | 0 | 92.1 | 89 | 53 | 46 | 9 | 48 | 54 | 3 | 4 | 2 | 1.48 | 8.68 | 0.88 | 4.68 | 5.26 | 5.17 | 1.13 |
| 1979 | Toledo Mud Hens | IL | AAA | MIN | - | 23 | 6 | 5 | 3.64 | 14 | 13 | 4 | 1 | 1 | 0 | 0 | 89.0 | 80 | 41 | 36 | 8 | 40 | 78 | 7 | 1 | 2 | 1.35 | 8.09 | 0.81 | 4.04 | 7.89 | 4.15 | 1.95 |
| 1979 | Minnesota Twins | AL | MLB | MIN | 31 | 23 | 4 | 4 | 4.28 | 24 | 8 | 1 | 0 | 16 | 7 | 0 | 69.1 | 89 | 36 | 33 | 5 | 26 | 43 | 10 | 0 | 1 | 1.66 | 11.55 | 0.65 | 3.38 | 5.58 | 4.67 | 1.65 |
| 1980 | Minnesota Twins | AL | MLB | MIN | 31 | 24 | 9 | 9 | 3.87 | 32 | 25 | 1 | 0 | 7 | 4 | 1 | 172.0 | 161 | 81 | 74 | 15 | 69 | 90 | 3 | 0 | 2 | 1.34 | 8.42 | 0.78 | 3.61 | 4.71 | 4.24 | 1.30 |
| 1981 | Toledo Mud Hens | IL | AAA | MIN | - | 25 | 0 | 0 | 2.25 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 8.0 | 8 | 2 | 2 | 0 | 1 | 6 | 0 | 0 | 1 | 1.13 | 9.00 | 0.00 | 1.13 | 6.75 | 2.25 | 6.00 |
| 1981 | Minnesota Twins | AL | MLB | MIN | 31 | 25 | 3 | 3 | 4.41 | 14 | 5 | 0 | 0 | 9 | 3 | 0 | 32.2 | 35 | 16 | 16 | 1 | 19 | 26 | 1 | 0 | 1 | 1.65 | 9.64 | 0.28 | 5.23 | 7.16 | 4.41 | 1.37 |
| 1982 | Toledo Mud Hens | IL | AAA | MIN | - | 26 | 1 | 3 | 7.00 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 18.0 | 24 | 18 | 14 | 2 | 12 | 11 | 1 | 0 | 1 | 2.00 | 12.00 | 1.00 | 6.00 | 5.50 | 9.00 | 0.92 |
| 1982 | Minnesota Twins | AL | MLB | MIN | 31 | 26 | 0 | 5 | 6.25 | 13 | 7 | 0 | 0 | 6 | 4 | 0 | 44.2 | 51 | 33 | 31 | 6 | 24 | 16 | 1 | 1 | 1 | 1.68 | 10.28 | 1.21 | 4.84 | 3.22 | 6.65 | 0.67 |
| Tot: | MLB (5 yrs) | MLB | 20 | 27 | 4.38 | 102 | 60 | 3 | 1 | 19 | 42 | 1 | 411.0 | 425 | 219 | 200 | 36 | 186 | 229 | 18 | 5 | 7 | 1.49 | 9.31 | 0.79 | 4.07 | 5.01 | 4.80 | 1.23 | ||||
| Tot: | AL (5 yrs) | AL | 20 | 27 | 4.38 | 102 | 60 | 3 | 1 | 19 | 42 | 1 | 411.0 | 425 | 219 | 200 | 36 | 186 | 229 | 18 | 5 | 7 | 1.49 | 9.31 | 0.79 | 4.07 | 5.01 | 4.80 | 1.23 | ||||
| Tot: | Minors (4 yrs) | Minors | 11 | 11 | 3.17 | 30 | 29 | 7 | 3 | 0 | 1 | 0 | 190.0 | 164 | 80 | 67 | 11 | 85 | 163 | 9 | 1 | 4 | 1.31 | 7.77 | 0.52 | 4.03 | 7.72 | 3.79 | 1.92 | ||||
| Tot: | AA (1 yrs) | AA | 4 | 3 | 1.80 | 10 | 10 | 3 | 2 | 0 | 0 | 0 | 75.0 | 52 | 19 | 15 | 1 | 32 | 68 | 1 | 0 | 0 | 1.12 | 6.24 | 0.12 | 3.84 | 8.16 | 2.28 | 2.13 | ||||
| Tot: | AAA (3 yrs) | AAA | 7 | 8 | 4.07 | 20 | 19 | 4 | 1 | 0 | 1 | 0 | 115.0 | 112 | 61 | 52 | 10 | 53 | 95 | 8 | 1 | 4 | 1.43 | 8.77 | 0.78 | 4.15 | 7.43 | 4.77 | 1.79 | ||||
| Tot: | College (2 yrs) | College | 10 | 4 | 3.11 | 18 | 15 | 4 | 1 | 0 | 3 | 0 | 113.0 | 102 | 61 | 39 | 0 | 54 | 108 | 0 | 0 | 0 | 1.38 | 8.12 | 0.00 | 4.30 | 8.60 | 4.86 | 2.00 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | College - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 66 | 34 | 43 | 49 | 43 | 46 | .457 |