| 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 | Milwaukee Brewers | AL | MLB | MIL | 35 | 22 | 0 | 0 | 4.50 | 8 | 0 | 0 | 0 | 8 | 2 | 0 | 18.0 | 19 | 10 | 9 | 2 | 5 | 10 | 1 | 0 | 0 | 1.33 | 9.50 | 1.00 | 2.50 | 5.00 | 5.00 | 2.00 |
| 1975 | Milwaukee Brewers | AL | MLB | MIL | 35 | 23 | 3 | 2 | 2.52 | 18 | 5 | 0 | 0 | 13 | 8 | 1 | 75.0 | 78 | 28 | 21 | 3 | 17 | 25 | 1 | 0 | 2 | 1.27 | 9.36 | 0.36 | 2.04 | 3.00 | 3.36 | 1.47 |
| 1976 | Milwaukee Brewers | AL | MLB | MIL | 35 | 24 | 4 | 6 | 3.45 | 39 | 0 | 0 | 0 | 39 | 29 | 8 | 70.1 | 70 | 29 | 27 | 4 | 19 | 23 | 2 | 0 | 3 | 1.27 | 8.96 | 0.51 | 2.43 | 2.94 | 3.71 | 1.21 |
| 1977 | Milwaukee Brewers | AL | MLB | MIL | 35 | 25 | 8 | 6 | 4.15 | 51 | 0 | 0 | 0 | 51 | 43 | 13 | 69.1 | 76 | 34 | 32 | 7 | 23 | 28 | 1 | 0 | 2 | 1.43 | 9.87 | 0.91 | 2.99 | 3.63 | 4.41 | 1.22 |
| 1978 | Milwaukee Brewers | AL | MLB | MIL | 35 | 26 | 5 | 4 | 1.81 | 42 | 0 | 0 | 0 | 42 | 35 | 8 | 49.2 | 43 | 14 | 10 | 2 | 14 | 17 | 3 | 0 | 6 | 1.15 | 7.79 | 0.36 | 2.54 | 3.08 | 2.54 | 1.21 |
| 1979 | Milwaukee Brewers | AL | MLB | MIL | 35 | 27 | 3 | 1 | 2.03 | 39 | 0 | 0 | 0 | 39 | 26 | 6 | 44.1 | 40 | 14 | 10 | 2 | 13 | 10 | 2 | 0 | 0 | 1.20 | 8.12 | 0.41 | 2.64 | 2.03 | 2.84 | 0.77 |
| 1980 | Milwaukee Brewers | AL | MLB | MIL | 35 | 28 | 2 | 4 | 2.77 | 56 | 0 | 0 | 0 | 56 | 36 | 8 | 84.1 | 89 | 35 | 26 | 2 | 17 | 32 | 5 | 0 | 2 | 1.26 | 9.50 | 0.21 | 1.81 | 3.42 | 3.74 | 1.88 |
| 1981 | Columbus Clippers | IL | AAA | NYA | - | 29 | 8 | 1 | 4.56 | 17 | 12 | 0 | 0 | 5 | 4 | 1 | 73.0 | 92 | 41 | 37 | 6 | 20 | 40 | 3 | 0 | 1 | 1.53 | 11.34 | 0.74 | 2.47 | 4.93 | 5.05 | 2.00 |
| 1981 | New York Yankees | AL | MLB | NYA | 35,56 | 29 | 1 | 1 | 3.79 | 11 | 0 | 0 | 0 | 11 | 6 | 0 | 19.0 | 26 | 13 | 8 | 2 | 5 | 4 | 0 | 0 | 0 | 1.63 | 12.32 | 0.95 | 2.37 | 1.89 | 6.16 | 0.80 |
| 1982 | Tacoma Tigers | PCL | AAA | OAK | - | 30 | 2 | 0 | 3.00 | 12 | 2 | 1 | 1 | 10 | 8 | 1 | 30.0 | 34 | 11 | 10 | 3 | 5 | 15 | 1 | 0 | 2 | 1.30 | 10.20 | 0.90 | 1.50 | 4.50 | 3.30 | 3.00 |
| 1982 | Kansas City Royals | AL | MLB | KCA | 39 | 30 | 3 | 2 | 3.45 | 21 | 4 | 0 | 0 | 17 | 7 | 1 | 75.2 | 72 | 34 | 29 | 8 | 20 | 37 | 2 | 0 | 2 | 1.22 | 8.56 | 0.95 | 2.38 | 4.40 | 4.04 | 1.85 |
| 1983 | Vancouver Canadians | PCL | AAA | MIL | - | 31 | 1 | 2 | 3.70 | 18 | 1 | 0 | 0 | 17 | 11 | 3 | 41.1 | 42 | 17 | 17 | 7 | 6 | 20 | 1 | 0 | 0 | 1.16 | 9.15 | 1.52 | 1.31 | 4.35 | 3.70 | 3.33 |
| 1983 | Kansas City Royals | AL | MLB | KCA | 39 | 31 | 2 | 0 | 6.64 | 18 | 0 | 0 | 0 | 18 | 6 | 0 | 40.2 | 51 | 34 | 30 | 4 | 12 | 17 | 1 | 0 | 5 | 1.55 | 11.29 | 0.89 | 2.66 | 3.76 | 7.52 | 1.42 |
| Tot: | MLB (10 yrs) | MLB | 31 | 26 | 3.33 | 303 | 9 | 0 | 0 | 198 | 294 | 45 | 546.1 | 564 | 245 | 202 | 36 | 145 | 203 | 18 | 0 | 22 | 1.30 | 9.29 | 0.59 | 2.39 | 3.34 | 4.04 | 1.40 | ||||
| Tot: | AL (10 yrs) | AL | 31 | 26 | 3.33 | 303 | 9 | 0 | 0 | 198 | 294 | 45 | 546.1 | 564 | 245 | 202 | 36 | 145 | 203 | 18 | 0 | 22 | 1.30 | 9.29 | 0.59 | 2.39 | 3.34 | 4.04 | 1.40 | ||||
| Tot: | Minors (3 yrs) | Minors | 11 | 3 | 3.99 | 47 | 15 | 1 | 1 | 23 | 32 | 5 | 144.1 | 168 | 69 | 64 | 16 | 31 | 75 | 5 | 0 | 3 | 1.38 | 10.48 | 1.00 | 1.93 | 4.68 | 4.30 | 2.42 | ||||
| Tot: | AAA (3 yrs) | AAA | 11 | 3 | 3.99 | 47 | 15 | 1 | 1 | 23 | 32 | 5 | 144.1 | 168 | 69 | 64 | 16 | 31 | 75 | 5 | 0 | 3 | 1.38 | 10.48 | 1.00 | 1.93 | 4.68 | 4.30 | 2.42 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 17 | 85 | 39 | 56 | 39 | 51 | .518 |