| 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 |
| 1978 | Appleton Foxes | Midw | A | CHA | - | 19 | 3 | 2 | 2.40 | 6 | 6 | 1 | 0 | 0 | 0 | 0 | 30.0 | 25 | 8 | 8 | 1 | 2 | 28 | 0 | 0 | 0 | 0.90 | 7.50 | 0.30 | 0.60 | 8.40 | 2.40 | 14.00 |
| 1978 | Knoxville Sox | Sou | AA | CHA | - | 19 | 1 | 1 | 4.29 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 21.0 | 24 | 16 | 10 | 0 | 4 | 17 | 0 | 0 | 0 | 1.33 | 10.29 | 0.00 | 1.71 | 7.29 | 6.86 | 4.25 |
| 1978 | Chicago White Sox | AL | MLB | CHA | 40 | 19 | 0 | 2 | 12.91 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 7.2 | 14 | 12 | 11 | 2 | 3 | 3 | 0 | 0 | 0 | 2.22 | 16.43 | 2.35 | 3.52 | 3.52 | 14.09 | 1.00 |
| 1979 | Knoxville Sox | Sou | AA | CHA | - | 20 | 6 | 10 | 4.83 | 20 | 19 | 4 | 1 | 1 | 0 | 1 | 110.0 | 126 | 68 | 59 | 5 | 37 | 92 | 1 | 0 | 0 | 1.48 | 10.31 | 0.41 | 3.03 | 7.53 | 5.56 | 2.49 |
| 1979 | Iowa Oaks | Amer | AAA | CHA | - | 20 | 2 | 3 | 3.29 | 7 | 6 | 1 | 0 | 1 | 0 | 1 | 41.0 | 41 | 17 | 15 | 2 | 15 | 34 | 1 | 0 | 1 | 1.37 | 9.00 | 0.44 | 3.29 | 7.46 | 3.73 | 2.27 |
| 1979 | Chicago White Sox | AL | MLB | CHA | 40 | 20 | 0 | 0 | 5.40 | 6 | 0 | 0 | 0 | 6 | 0 | 0 | 5.0 | 10 | 5 | 3 | 1 | 1 | 2 | 0 | 0 | 0 | 2.20 | 18.00 | 1.80 | 1.80 | 3.60 | 9.00 | 2.00 |
| 1980 | Chicago White Sox | AL | MLB | CHA | 40 | 21 | 15 | 13 | 2.84 | 34 | 32 | 11 | 1 | 2 | 1 | 0 | 238.0 | 213 | 83 | 75 | 17 | 63 | 133 | 1 | 4 | 4 | 1.16 | 8.05 | 0.64 | 2.38 | 5.03 | 3.14 | 2.11 |
| 1981 | Chicago White Sox | AL | MLB | CHA | 40 | 22 | 10 | 6 | 2.64 | 24 | 23 | 5 | 1 | 1 | 0 | 0 | 156.2 | 139 | 52 | 46 | 14 | 49 | 108 | 1 | 1 | 6 | 1.20 | 7.99 | 0.80 | 2.81 | 6.20 | 2.99 | 2.20 |
| 1982 | Chicago White Sox | AL | MLB | CHA | 40 | 23 | 13 | 5 | 4.04 | 28 | 28 | 5 | 1 | 0 | 0 | 0 | 169.1 | 168 | 89 | 76 | 12 | 67 | 116 | 2 | 1 | 3 | 1.39 | 8.93 | 0.64 | 3.56 | 6.17 | 4.73 | 1.73 |
| 1983 | Chicago White Sox | AL | MLB | CHA | 40 | 24 | 10 | 11 | 3.58 | 29 | 26 | 8 | 4 | 3 | 0 | 0 | 173.2 | 165 | 79 | 69 | 14 | 55 | 115 | 6 | 0 | 5 | 1.27 | 8.55 | 0.73 | 2.85 | 5.96 | 4.09 | 2.09 |
| 1984 | Appleton Foxes | Midw | A | CHA | - | 25 | 1 | 0 | 1.80 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5.0 | 4 | 1 | 1 | 0 | 1 | 5 | 0 | 0 | 0 | 1.00 | 7.20 | 0.00 | 1.80 | 9.00 | 1.80 | 5.00 |
| 1984 | Denver Zephyrs | Amer | AAA | CHA | - | 25 | 1 | 0 | 4.50 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 6.0 | 6 | 3 | 3 | 1 | 3 | 5 | 1 | 0 | 1 | 1.50 | 9.00 | 1.50 | 4.50 | 7.50 | 4.50 | 1.67 |
| 1984 | Chicago White Sox | AL | MLB | CHA | 40 | 25 | 4 | 12 | 5.00 | 34 | 16 | 2 | 0 | 18 | 6 | 3 | 117.0 | 130 | 74 | 65 | 7 | 45 | 85 | 2 | 0 | 4 | 1.50 | 10.00 | 0.54 | 3.46 | 6.54 | 5.69 | 1.89 |
| 1985 | Chicago White Sox | AL | MLB | CHA | 40 | 26 | 18 | 11 | 3.96 | 36 | 34 | 8 | 4 | 2 | 1 | 0 | 227.0 | 206 | 105 | 100 | 26 | 79 | 172 | 2 | 0 | 2 | 1.26 | 8.17 | 1.03 | 3.13 | 6.82 | 4.16 | 2.18 |
| 1990 | Fort Lauderdale Yankees | FSL | A+ | NYA | - | 31 | 1 | 2 | 10.80 | 4 | 3 | 1 | 0 | 1 | 1 | 0 | 10.0 | 16 | 14 | 12 | 0 | 7 | 3 | 0 | 0 | 0 | 2.30 | 14.40 | 0.00 | 6.30 | 2.70 | 12.60 | 0.43 |
| 1990 | Columbus Clippers | IL | AAA | NYA | - | 31 | 0 | 1 | 12.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.0 | 5 | 4 | 4 | 1 | 3 | 3 | 0 | 0 | 0 | 2.67 | 15.00 | 3.00 | 9.00 | 9.00 | 12.00 | 1.00 |
| Tot: | MLB (8 yrs) | MLB | 70 | 60 | 3.66 | 193 | 161 | 39 | 11 | 8 | 32 | 3 | 1094.1 | 1045 | 499 | 445 | 93 | 362 | 734 | 14 | 6 | 24 | 1.29 | 8.59 | 0.76 | 2.98 | 6.04 | 4.10 | 2.03 | ||||
| Tot: | AL (8 yrs) | AL | 70 | 60 | 3.66 | 193 | 161 | 39 | 11 | 8 | 32 | 3 | 1094.1 | 1045 | 499 | 445 | 93 | 362 | 734 | 14 | 6 | 24 | 1.29 | 8.59 | 0.76 | 2.98 | 6.04 | 4.10 | 2.03 | ||||
| Tot: | Minors (4 yrs) | Minors | 15 | 19 | 4.46 | 44 | 41 | 7 | 1 | 1 | 3 | 2 | 226.0 | 247 | 131 | 112 | 10 | 72 | 187 | 3 | 0 | 2 | 1.41 | 9.84 | 0.40 | 2.87 | 7.45 | 5.22 | 2.60 | ||||
| Tot: | A (2 yrs) | A | 4 | 2 | 2.31 | 7 | 7 | 1 | 0 | 0 | 0 | 0 | 35.0 | 29 | 9 | 9 | 1 | 3 | 33 | 0 | 0 | 0 | 0.91 | 7.46 | 0.26 | 0.77 | 8.49 | 2.31 | 11.00 | ||||
| Tot: | A+ (1 yrs) | A+ | 1 | 2 | 10.80 | 4 | 3 | 1 | 0 | 1 | 1 | 0 | 10.0 | 16 | 14 | 12 | 0 | 7 | 3 | 0 | 0 | 0 | 2.30 | 14.40 | 0.00 | 6.30 | 2.70 | 12.60 | 0.43 | ||||
| Tot: | AA (2 yrs) | AA | 7 | 11 | 4.74 | 24 | 23 | 4 | 1 | 0 | 1 | 1 | 131.0 | 150 | 84 | 69 | 5 | 41 | 109 | 1 | 0 | 0 | 1.46 | 10.31 | 0.34 | 2.82 | 7.49 | 5.77 | 2.66 | ||||
| Tot: | AAA (3 yrs) | AAA | 3 | 4 | 3.96 | 9 | 8 | 1 | 0 | 0 | 1 | 1 | 50.0 | 52 | 24 | 22 | 4 | 21 | 42 | 2 | 0 | 2 | 1.46 | 9.36 | 0.72 | 3.78 | 7.56 | 4.32 | 2.00 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | category | 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 |
| 1983 | Chicago White Sox | Championship Series | Playoffs | 24 | 0 | 1 | 0.96 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9.1 | 6 | 0 | 1 | 0 | 5 | 8 | 0 | 0 | 0 | 1.18 | 5.79 | 0.00 | 4.82 | 7.71 | 0.00 | 1.60 |
| Tot: | Playoffs (1 Yrs) | Playoffs | 0 | 1 | 0.96 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 9.1 | 6 | 0 | 1 | 0 | 5 | 8 | 0 | 0 | 0 | 1.18 | 5.79 | 0.00 | 4.82 | 7.71 | 0.00 | 1.60 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 78 | 67 | 56 | 81 | 56 | 57 | .527 |