| 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 |
| 1979 | Niagara Falls Pirates | NYPL | A- | - | 20 | 5 | 1 | 2.29 | 10 | 6 | 4 | 0 | 4 | 0 | 0 | 55.0 | 43 | 17 | 14 | 1 | 21 | 44 | 6 | 0 | 4 | 1.16 | 7.04 | 0.16 | 3.44 | 7.20 | 2.78 | 2.10 | |
| 1979 | Knoxville Sox | Sou | AA | CHA | - | 20 | 2 | 1 | 3.24 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 25.0 | 22 | 12 | 9 | 0 | 15 | 7 | 0 | 0 | 1 | 1.48 | 7.92 | 0.00 | 5.40 | 2.52 | 4.32 | 0.47 |
| 1980 | Glens Falls White Sox | East | AA | CHA | - | 21 | 6 | 3 | 3.74 | 13 | 13 | 4 | 0 | 0 | 0 | 0 | 89.0 | 80 | 46 | 37 | 8 | 45 | 52 | 6 | 0 | 4 | 1.40 | 8.09 | 0.81 | 4.55 | 5.26 | 4.65 | 1.16 |
| 1980 | Iowa Oaks | Amer | AAA | CHA | - | 21 | 4 | 8 | 6.34 | 13 | 12 | 3 | 1 | 1 | 0 | 0 | 71.0 | 84 | 54 | 50 | 6 | 28 | 56 | 5 | 0 | 4 | 1.58 | 10.65 | 0.76 | 3.55 | 7.10 | 6.85 | 2.00 |
| 1981 | Appleton Foxes | Midw | A | CHA | - | 22 | 0 | 0 | 1.80 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5.0 | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0.40 | 3.60 | 0.00 | 0.00 | 3.60 | 1.80 | 0.00 |
| 1981 | Edmonton Trappers | PCL | AAA | CHA | - | 22 | 10 | 8 | 3.31 | 20 | 20 | 6 | 1 | 0 | 0 | 0 | 136.0 | 111 | 63 | 50 | 11 | 71 | 80 | 6 | 0 | 6 | 1.34 | 7.35 | 0.73 | 4.70 | 5.29 | 4.17 | 1.13 |
| 1981 | Chicago White Sox | AL | MLB | CHA | 51 | 22 | 0 | 1 | 13.50 | 6 | 1 | 0 | 0 | 5 | 2 | 0 | 7.1 | 14 | 11 | 11 | 1 | 6 | 2 | 1 | 0 | 0 | 2.73 | 17.18 | 1.23 | 7.36 | 2.45 | 13.50 | 0.33 |
| 1982 | Edmonton Trappers | PCL | AAA | CHA | - | 23 | 14 | 10 | 4.87 | 29 | 29 | 5 | 1 | 0 | 0 | 0 | 186.2 | 212 | 125 | 101 | 19 | 89 | 109 | 8 | 4 | 6 | 1.61 | 10.22 | 0.92 | 4.29 | 5.26 | 6.03 | 1.22 |
| 1983 | Iowa Cubs | Amer | AAA | CHN | - | 24 | 10 | 10 | 5.23 | 28 | 28 | 4 | 2 | 0 | 0 | 0 | 172.0 | 201 | 116 | 100 | 18 | 84 | 114 | 12 | 0 | 6 | 1.66 | 10.52 | 0.94 | 4.40 | 5.97 | 6.07 | 1.36 |
| 1983 | Chicago Cubs | NL | MLB | CHN | 52 | 24 | 1 | 2 | 4.82 | 5 | 2 | 0 | 0 | 3 | 0 | 0 | 18.2 | 17 | 12 | 10 | 3 | 6 | 10 | 1 | 0 | 2 | 1.23 | 8.20 | 1.45 | 2.89 | 4.82 | 5.79 | 1.67 |
| 1984 | Iowa Cubs | Amer | AAA | CHN | - | 25 | 14 | 7 | 4.33 | 32 | 29 | 5 | 1 | 3 | 1 | 1 | 178.2 | 185 | 105 | 86 | 18 | 65 | 116 | 7 | 0 | 2 | 1.40 | 9.32 | 0.91 | 3.27 | 5.84 | 5.29 | 1.78 |
| 1984 | Chicago Cubs | NL | MLB | CHN | 52 | 25 | 0 | 1 | 10.50 | 3 | 1 | 0 | 0 | 2 | 1 | 0 | 6.0 | 10 | 7 | 7 | 1 | 2 | 5 | 1 | 0 | 0 | 2.00 | 15.00 | 1.50 | 3.00 | 7.50 | 10.50 | 2.50 |
| 1985 | Iowa Cubs | Amer | AAA | CHN | - | 26 | 8 | 10 | 4.77 | 22 | 22 | 4 | 2 | 0 | 0 | 0 | 132.0 | 142 | 86 | 70 | 13 | 51 | 78 | 2 | 0 | 0 | 1.46 | 9.68 | 0.89 | 3.48 | 5.32 | 5.86 | 1.53 |
| 1985 | Chicago Cubs | NL | MLB | CHN | 52 | 26 | 3 | 0 | 3.00 | 8 | 5 | 1 | 0 | 3 | 0 | 0 | 39.0 | 36 | 13 | 13 | 2 | 10 | 17 | 1 | 0 | 0 | 1.18 | 8.31 | 0.46 | 2.31 | 3.92 | 3.00 | 1.70 |
| Tot: | MLB (4 yrs) | MLB | 4 | 4 | 5.20 | 22 | 9 | 1 | 0 | 3 | 13 | 0 | 71.0 | 77 | 43 | 41 | 7 | 24 | 34 | 4 | 0 | 2 | 1.42 | 9.76 | 0.89 | 3.04 | 4.31 | 5.45 | 1.42 | ||||
| Tot: | AL (1 yrs) | AL | 0 | 1 | 13.50 | 6 | 1 | 0 | 0 | 2 | 5 | 0 | 7.1 | 14 | 11 | 11 | 1 | 6 | 2 | 1 | 0 | 0 | 2.73 | 17.18 | 1.23 | 7.36 | 2.45 | 13.50 | 0.33 | ||||
| Tot: | NL (3 yrs) | NL | 4 | 3 | 4.24 | 16 | 8 | 1 | 0 | 1 | 8 | 0 | 63.2 | 63 | 32 | 30 | 6 | 18 | 32 | 3 | 0 | 2 | 1.27 | 8.91 | 0.85 | 2.54 | 4.52 | 4.52 | 1.78 | ||||
| Tot: | Minors (7 yrs) | Minors | 73 | 58 | 4.44 | 172 | 164 | 36 | 8 | 1 | 8 | 1 | 1050.1 | 1082 | 625 | 518 | 94 | 469 | 658 | 52 | 4 | 33 | 1.48 | 9.27 | 0.81 | 4.02 | 5.64 | 5.36 | 1.40 | ||||
| Tot: | A- (1 yrs) | A- | 5 | 1 | 2.29 | 10 | 6 | 4 | 0 | 0 | 4 | 0 | 55.0 | 43 | 17 | 14 | 1 | 21 | 44 | 6 | 0 | 4 | 1.16 | 7.04 | 0.16 | 3.44 | 7.20 | 2.78 | 2.10 | ||||
| Tot: | A (1 yrs) | A | 0 | 0 | 1.80 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5.0 | 2 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0.40 | 3.60 | 0.00 | 0.00 | 3.60 | 1.80 | |||||
| Tot: | AA (2 yrs) | AA | 8 | 4 | 3.63 | 17 | 17 | 5 | 0 | 0 | 0 | 0 | 114.0 | 102 | 58 | 46 | 8 | 60 | 59 | 6 | 0 | 5 | 1.42 | 8.05 | 0.63 | 4.74 | 4.66 | 4.58 | 0.98 | ||||
| Tot: | AAA (6 yrs) | AAA | 60 | 53 | 4.69 | 144 | 140 | 27 | 8 | 1 | 4 | 1 | 876.1 | 935 | 549 | 457 | 85 | 388 | 553 | 40 | 4 | 24 | 1.51 | 9.60 | 0.87 | 3.98 | 5.68 | 5.64 | 1.43 | ||||
| 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 |
| 1983 | Chicago Cubs | NL | MLB | CHN | 52 | 24 | P | 5 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 25.00 | 0.00 | 0.00 | |
| 1984 | Iowa Cubs | Amer | AAA | CHN | - | 25 | P | 32 | 22 | 1 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 8 | 0 | 5 | 0 | 0 | 0 | 5 | 28 | 0 | 5 | .227 | .261 | .227 | .488 | .045 | .000 | .357 | 3.57 | 28.57 | 8.00 | 0.00 | |
| 1984 | Chicago Cubs | NL | MLB | CHN | 52 | 25 | P | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1985 | Iowa Cubs | Amer | AAA | CHN | - | 26 | P | 22 | 14 | 4 | 5 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 6 | 16 | 1 | 4 | .357 | .357 | .429 | .786 | .071 | .072 | .455 | 0.00 | 18.75 | 0.00 | 0.00 | |
| 1985 | Chicago Cubs | NL | MLB | CHN | 52 | 26 | P | 8 | 10 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 2 | 0 | 0 | 0 | 1 | 13 | 0 | 1 | .100 | .182 | .100 | .282 | .100 | .000 | .167 | 7.69 | 30.77 | 4.00 | 0.00 | |
| Tot: | MLB (3 yrs) | MLB | 16 | 18 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 4 | 0 | 0 | 0 | 1 | 23 | 0 | 1 | .056 | .105 | .056 | .161 | .056 | .000 | .083 | 4.35 | 26.09 | 6.00 | |||||||
| Tot: | NL (3 yrs) | NL | 16 | 18 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 4 | 0 | 0 | 0 | 1 | 23 | 0 | 1 | .056 | .105 | .056 | .161 | .056 | .000 | .083 | 4.35 | 26.09 | 6.00 | |||||||
| Tot: | Minors (2 yrs) | Minors | 54 | 36 | 5 | 10 | 1 | 0 | 0 | 4 | 0 | 0 | 1 | 11 | 0 | 7 | 0 | 0 | 0 | 11 | 44 | 1 | 9 | .278 | .297 | .306 | .603 | .056 | .028 | .400 | 2.27 | 25.00 | 11.00 | |||||||
| Tot: | AAA (2 yrs) | AAA | 54 | 36 | 5 | 10 | 1 | 0 | 0 | 4 | 0 | 0 | 1 | 11 | 0 | 7 | 0 | 0 | 0 | 11 | 44 | 1 | 9 | .278 | .297 | .306 | .603 | .056 | .028 | .400 | 2.27 | 25.00 | 11.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 39 | 60 | 52 | 51 | 52 | 58 | .482 |