| 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 |
| 1975 | Chicago White Sox | AL | MLB | CHA | 27 | 23 | 0 | 1 | 6.23 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 4.1 | 1 | 3 | 3 | 0 | 8 | 1 | 0 | 0 | 0 | 2.08 | 2.08 | 0.00 | 16.62 | 2.08 | 6.23 | 0.13 |
| 1976 | Iowa Oaks | Amer | AAA | CHA | - | 24 | 8 | 5 | 4.33 | 24 | 22 | 5 | 2 | 2 | 0 | 0 | 131.0 | 103 | 68 | 63 | 13 | 89 | 142 | 4 | 1 | 2 | 1.47 | 7.08 | 0.89 | 6.11 | 9.76 | 4.67 | 1.60 |
| 1976 | Chicago White Sox | AL | MLB | CHA | 27 | 24 | 1 | 5 | 4.89 | 9 | 8 | 1 | 0 | 1 | 0 | 0 | 49.2 | 49 | 28 | 27 | 3 | 32 | 38 | 3 | 1 | 1 | 1.63 | 8.88 | 0.54 | 5.80 | 6.89 | 5.07 | 1.19 |
| 1977 | Iowa Oaks | Amer | AAA | CHA | - | 25 | 4 | 4 | 2.59 | 9 | 9 | 1 | 1 | 0 | 0 | 0 | 59.0 | 46 | 21 | 17 | 5 | 33 | 62 | 0 | 1 | 0 | 1.34 | 7.02 | 0.76 | 5.03 | 9.46 | 3.20 | 1.88 |
| 1977 | Chicago White Sox | AL | MLB | CHA | 27 | 25 | 11 | 8 | 4.10 | 26 | 25 | 6 | 1 | 1 | 0 | 0 | 166.2 | 161 | 87 | 76 | 12 | 57 | 125 | 4 | 1 | 6 | 1.31 | 8.69 | 0.65 | 3.08 | 6.75 | 4.70 | 2.19 |
| 1978 | Iowa Oaks | Amer | AAA | CHA | - | 26 | 1 | 1 | 3.75 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 12.0 | 10 | 5 | 5 | 1 | 5 | 14 | 0 | 0 | 1 | 1.25 | 7.50 | 0.75 | 3.75 | 10.50 | 3.75 | 2.80 |
| 1978 | Chicago White Sox | AL | MLB | CHA | 27 | 26 | 11 | 16 | 4.08 | 30 | 30 | 7 | 2 | 0 | 0 | 0 | 203.0 | 188 | 104 | 92 | 22 | 95 | 154 | 7 | 1 | 10 | 1.39 | 8.33 | 0.98 | 4.21 | 6.83 | 4.61 | 1.62 |
| 1979 | Chicago White Sox | AL | MLB | CHA | 55 | 27 | 15 | 13 | 3.74 | 36 | 35 | 10 | 3 | 1 | 1 | 1 | 250.0 | 208 | 115 | 104 | 20 | 111 | 132 | 3 | 1 | 14 | 1.28 | 7.49 | 0.72 | 4.00 | 4.75 | 4.14 | 1.19 |
| 1980 | Chicago White Sox | AL | MLB | CHA | 27 | 28 | 3 | 6 | 6.94 | 20 | 15 | 0 | 0 | 5 | 1 | 0 | 81.2 | 100 | 71 | 63 | 13 | 44 | 37 | 5 | 1 | 5 | 1.76 | 11.02 | 1.43 | 4.85 | 4.08 | 7.82 | 0.84 |
| 1981 | Chicago Cubs | NL | MLB | CHN | 37 | 29 | 1 | 6 | 5.06 | 24 | 12 | 0 | 0 | 12 | 2 | 0 | 78.1 | 80 | 48 | 44 | 5 | 39 | 50 | 2 | 1 | 4 | 1.52 | 9.19 | 0.57 | 4.48 | 5.74 | 5.51 | 1.28 |
| 1982 | Iowa Cubs | Amer | AAA | CHN | - | 30 | 2 | 6 | 6.98 | 14 | 14 | 0 | 0 | 0 | 0 | 0 | 68.1 | 76 | 59 | 53 | 14 | 39 | 53 | 1 | 0 | 3 | 1.68 | 10.01 | 1.84 | 5.14 | 6.98 | 7.77 | 1.36 |
| 1982 | Chicago Cubs | NL | MLB | CHN | 37 | 30 | 1 | 1 | 6.12 | 13 | 2 | 0 | 0 | 11 | 2 | 0 | 25.0 | 27 | 20 | 17 | 3 | 18 | 20 | 1 | 0 | 0 | 1.80 | 9.72 | 1.08 | 6.48 | 7.20 | 7.20 | 1.11 |
| 1983 | Albany/Colonie A's | East | AA | OAK | - | 31 | 3 | 7 | 4.85 | 35 | 8 | 1 | 0 | 27 | 17 | 3 | 78.0 | 81 | 53 | 42 | 6 | 47 | 53 | 2 | 0 | 5 | 1.64 | 9.35 | 0.69 | 5.42 | 6.12 | 6.12 | 1.13 |
| 1987 | Fort Myers Royals | FSL | A+ | KCA | - | 35 | 0 | 0 | 4.50 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 4.0 | 6 | 2 | 2 | 0 | 1 | 3 | 0 | 0 | 0 | 1.75 | 13.50 | 0.00 | 2.25 | 6.75 | 4.50 | 3.00 |
| Tot: | MLB (8 yrs) | MLB | 43 | 56 | 4.47 | 160 | 128 | 24 | 6 | 6 | 32 | 1 | 858.2 | 814 | 476 | 426 | 78 | 404 | 557 | 25 | 6 | 40 | 1.42 | 8.53 | 0.82 | 4.23 | 5.84 | 4.99 | 1.38 | ||||
| Tot: | AL (6 yrs) | AL | 41 | 49 | 4.35 | 123 | 114 | 24 | 6 | 2 | 9 | 1 | 755.1 | 707 | 408 | 365 | 70 | 347 | 487 | 22 | 5 | 36 | 1.40 | 8.42 | 0.83 | 4.13 | 5.80 | 4.86 | 1.40 | ||||
| Tot: | NL (2 yrs) | NL | 2 | 7 | 5.31 | 37 | 14 | 0 | 0 | 4 | 23 | 0 | 103.1 | 107 | 68 | 61 | 8 | 57 | 70 | 3 | 1 | 4 | 1.59 | 9.32 | 0.70 | 4.96 | 6.10 | 5.92 | 1.23 | ||||
| Tot: | Minors (6 yrs) | Minors | 18 | 23 | 4.65 | 86 | 55 | 8 | 4 | 19 | 31 | 3 | 352.1 | 322 | 208 | 182 | 39 | 214 | 327 | 7 | 2 | 11 | 1.52 | 8.23 | 1.00 | 5.47 | 8.35 | 5.31 | 1.53 | ||||
| Tot: | A+ (1 yrs) | A+ | 0 | 0 | 4.50 | 2 | 0 | 0 | 0 | 2 | 2 | 0 | 4.0 | 6 | 2 | 2 | 0 | 1 | 3 | 0 | 0 | 0 | 1.75 | 13.50 | 0.00 | 2.25 | 6.75 | 4.50 | 3.00 | ||||
| Tot: | AA (1 yrs) | AA | 3 | 7 | 4.85 | 35 | 8 | 1 | 0 | 17 | 27 | 3 | 78.0 | 81 | 53 | 42 | 6 | 47 | 53 | 2 | 0 | 5 | 1.64 | 9.35 | 0.69 | 5.42 | 6.12 | 6.12 | 1.13 | ||||
| Tot: | AAA (4 yrs) | AAA | 15 | 16 | 4.59 | 49 | 47 | 7 | 4 | 0 | 2 | 0 | 270.1 | 235 | 153 | 138 | 33 | 166 | 271 | 5 | 2 | 6 | 1.48 | 7.82 | 1.10 | 5.53 | 9.02 | 5.09 | 1.63 | ||||
| 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 |
| 1976 | Iowa Oaks | Amer | AAA | CHA | - | 24 | P | 30 | 46 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 0 | 7 | 0 | 0 | 0 | 5 | 53 | 0 | 5 | .109 | .109 | .109 | .218 | .000 | .000 | .208 | 0.00 | 41.51 | 0.00 | 0.00 | |
| 1977 | Iowa Oaks | Amer | AAA | CHA | - | 25 | P | 10 | 22 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 4 | 22 | 1 | 2 | .136 | .136 | .182 | .318 | .045 | .046 | .250 | 0.00 | 45.45 | 0.00 | 0.00 | |
| 1981 | Chicago Cubs | NL | MLB | CHN | 37 | 29 | P | 25 | 15 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 | 0 | 4 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | .000 | .118 | .000 | .118 | .133 | .000 | .000 | 9.52 | 38.10 | 4.00 | 0.00 | |
| 1982 | Chicago Cubs | NL | MLB | CHN | 37 | 30 | P | 13 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | .000 | .250 | .000 | .250 | .333 | .000 | .000 | 25.00 | 25.00 | 1.00 | 0.00 | |
| 1983 | Albany/Colonie A's | East | AA | OAK | - | 31 | P | 35 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1987 | Fort Myers Royals | FSL | A+ | KCA | - | 35 | P | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| Tot: | MLB (2 yrs) | MLB | 38 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 0 | 4 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | .000 | .143 | .000 | .143 | .167 | .000 | .000 | 12.00 | 36.00 | 3.00 | |||||||
| Tot: | NL (2 yrs) | NL | 38 | 18 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 0 | 4 | 0 | 0 | 0 | 0 | 25 | 0 | 0 | .000 | .143 | .000 | .143 | .167 | .000 | .000 | 12.00 | 36.00 | 3.00 | |||||||
| Tot: | Minors (4 yrs) | Minors | 78 | 72 | 3 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 35 | 0 | 7 | 0 | 0 | 0 | 9 | 79 | 1 | 7 | .111 | .111 | .125 | .236 | .014 | .014 | .216 | 0.00 | 44.30 | ||||||||
| Tot: | A+ (1 yrs) | A+ | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | |||||||||
| Tot: | AA (1 yrs) | AA | 35 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 66.67 | ||||||||
| Tot: | AAA (2 yrs) | AAA | 40 | 68 | 3 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 32 | 0 | 7 | 0 | 0 | 0 | 9 | 75 | 1 | 7 | .118 | .118 | .132 | .250 | .015 | .015 | .222 | 0.00 | 42.67 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 76 | 23 | 54 | 47 | 54 | 51 | .465 |