| 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 | Chicago White Sox | AL | MLB | CHA | 47 | 21 | 0 | 0 | 27.00 | 2 | 0 | 0 | 0 | 2 | 1 | 0 | 2.0 | 7 | 6 | 6 | 0 | 2 | 2 | 0 | 0 | 0 | 4.50 | 31.50 | 0.00 | 9.00 | 9.00 | 27.00 | 1.00 |
| 1976 | Chicago White Sox | AL | MLB | CHA | 46 | 23 | 5 | 9 | 4.32 | 35 | 14 | 6 | 0 | 21 | 13 | 3 | 141.2 | 136 | 72 | 68 | 13 | 46 | 81 | 2 | 1 | 4 | 1.28 | 8.64 | 0.83 | 2.92 | 5.15 | 4.57 | 1.76 |
| 1977 | Chicago White Sox | AL | MLB | CHA | 46 | 24 | 14 | 7 | 4.12 | 33 | 31 | 9 | 0 | 2 | 1 | 0 | 231.1 | 241 | 117 | 106 | 22 | 58 | 119 | 4 | 0 | 5 | 1.29 | 9.38 | 0.86 | 2.26 | 4.63 | 4.55 | 2.05 |
| 1978 | Chicago White Sox | AL | MLB | CHA | 46 | 25 | 9 | 15 | 4.05 | 33 | 32 | 9 | 2 | 1 | 1 | 0 | 195.2 | 180 | 93 | 88 | 13 | 85 | 79 | 3 | 1 | 7 | 1.35 | 8.28 | 0.60 | 3.91 | 3.63 | 4.28 | 0.93 |
| 1979 | Chicago White Sox | AL | MLB | CHA | 46 | 26 | 8 | 3 | 3.61 | 15 | 15 | 2 | 0 | 0 | 0 | 0 | 94.2 | 88 | 49 | 38 | 9 | 33 | 28 | 0 | 1 | 5 | 1.28 | 8.37 | 0.86 | 3.14 | 2.66 | 4.66 | 0.85 |
| 1980 | Appleton Foxes | Midw | A | CHA | - | 27 | 0 | 0 | 0.69 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 13.0 | 5 | 2 | 1 | 1 | 4 | 5 | 0 | 0 | 0 | 0.69 | 3.46 | 0.69 | 2.77 | 3.46 | 1.38 | 1.25 |
| 1980 | Iowa Oaks | Amer | AAA | CHA | - | 27 | 0 | 0 | 15.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.0 | 7 | 5 | 5 | 1 | 1 | 1 | 1 | 0 | 0 | 2.67 | 21.00 | 3.00 | 3.00 | 3.00 | 15.00 | 1.00 |
| 1980 | Chicago White Sox | AL | MLB | CHA | 46 | 27 | 1 | 1 | 4.96 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 16.1 | 21 | 9 | 9 | 4 | 8 | 2 | 0 | 0 | 1 | 1.78 | 11.57 | 2.20 | 4.41 | 1.10 | 4.96 | 0.25 |
| 1981 | Chicago White Sox | AL | MLB | CHA | 46 | 28 | 1 | 3 | 3.96 | 8 | 7 | 1 | 0 | 1 | 0 | 0 | 36.1 | 45 | 23 | 16 | 3 | 14 | 12 | 1 | 0 | 1 | 1.62 | 11.15 | 0.74 | 3.47 | 2.97 | 5.70 | 0.86 |
| Tot: | MLB (7 yrs) | MLB | 38 | 38 | 4.15 | 129 | 102 | 27 | 2 | 16 | 27 | 3 | 718.0 | 718 | 369 | 331 | 64 | 246 | 323 | 10 | 3 | 23 | 1.34 | 9.00 | 0.80 | 3.08 | 4.05 | 4.63 | 1.31 | ||||
| Tot: | AL (7 yrs) | AL | 38 | 38 | 4.15 | 129 | 102 | 27 | 2 | 16 | 27 | 3 | 718.0 | 718 | 369 | 331 | 64 | 246 | 323 | 10 | 3 | 23 | 1.34 | 9.00 | 0.80 | 3.08 | 4.05 | 4.63 | 1.31 | ||||
| Tot: | Minors (1 yrs) | Minors | 0 | 0 | 3.38 | 3 | 3 | 0 | 0 | 0 | 0 | 1 | 16.0 | 12 | 7 | 6 | 2 | 5 | 6 | 1 | 0 | 0 | 1.06 | 6.75 | 1.12 | 2.81 | 3.38 | 3.94 | 1.20 | ||||
| Tot: | A (1 yrs) | A | 0 | 0 | 0.69 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 13.0 | 5 | 2 | 1 | 1 | 4 | 5 | 0 | 0 | 0 | 0.69 | 3.46 | 0.69 | 2.77 | 3.46 | 1.38 | 1.25 | ||||
| Tot: | AAA (1 yrs) | AAA | 0 | 0 | 15.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.0 | 7 | 5 | 5 | 1 | 1 | 1 | 1 | 0 | 0 | 2.67 | 21.00 | 3.00 | 3.00 | 3.00 | 15.00 | 1.00 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 21 | 56 | 50 | 33 | 50 | 45 | .473 |