| 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 |
| 1983 | Quad Cities Cubs | Midw | A | CHN | - | 21 | 3 | 2 | 2.42 | 8 | 6 | 1 | 0 | 2 | 1 | 1 | 44.2 | 32 | 15 | 12 | 6 | 14 | 35 | 5 | 0 | 6 | 1.03 | 6.45 | 1.21 | 2.82 | 7.05 | 3.02 | 2.50 |
| 1983 | Midland Cubs | Tex | AA | CHN | - | 21 | 1 | 1 | 6.91 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 14.1 | 22 | 12 | 11 | 3 | 8 | 8 | 2 | 0 | 0 | 2.09 | 13.81 | 1.88 | 5.02 | 5.02 | 7.53 | 1.00 |
| 1984 | Lodi Crushers | Calif | A+ | CHN | - | 22 | 0 | 7 | 3.65 | 20 | 6 | 1 | 0 | 14 | 3 | 1 | 69.0 | 54 | 38 | 28 | 4 | 35 | 46 | 6 | 0 | 1 | 1.29 | 7.04 | 0.52 | 4.57 | 6.00 | 4.96 | 1.31 |
| 1984 | Midland Cubs | Tex | AA | CHN | - | 22 | 1 | 10 | 6.31 | 16 | 11 | 0 | 0 | 5 | 3 | 0 | 61.1 | 69 | 53 | 43 | 7 | 37 | 20 | 11 | 0 | 1 | 1.73 | 10.13 | 1.03 | 5.43 | 2.93 | 7.78 | 0.54 |
| 1985 | Pittsfield Cubs | East | AA | CHN | - | 23 | 3 | 6 | 4.91 | 33 | 4 | 0 | 0 | 29 | 16 | 0 | 73.1 | 74 | 44 | 40 | 4 | 47 | 53 | 6 | 0 | 1 | 1.65 | 9.08 | 0.49 | 5.77 | 6.50 | 5.40 | 1.13 |
| 1986 | Pittsfield Cubs | East | AA | CHN | - | 24 | 4 | 4 | 1.87 | 38 | 0 | 0 | 0 | 38 | 27 | 13 | 62.2 | 51 | 20 | 13 | 2 | 22 | 50 | 1 | 0 | 0 | 1.16 | 7.32 | 0.29 | 3.16 | 7.18 | 2.87 | 2.27 |
| 1987 | Iowa Cubs | Amer | AAA | CHN | - | 25 | 7 | 10 | 5.73 | 53 | 8 | 1 | 0 | 45 | 20 | 4 | 108.1 | 117 | 72 | 69 | 14 | 43 | 75 | 14 | 0 | 6 | 1.48 | 9.72 | 1.16 | 3.57 | 6.23 | 5.98 | 1.74 |
| 1988 | Iowa Cubs | Amer | AAA | CHN | - | 26 | 3 | 2 | 3.43 | 32 | 2 | 0 | 0 | 30 | 13 | 3 | 57.2 | 60 | 24 | 22 | 2 | 23 | 49 | 4 | 0 | 1 | 1.44 | 9.36 | 0.31 | 3.59 | 7.65 | 3.75 | 2.13 |
| 1988 | Chicago Cubs | NL | MLB | CHN | 38 | 26 | 2 | 1 | 4.91 | 22 | 0 | 0 | 0 | 22 | 11 | 0 | 29.1 | 34 | 19 | 16 | 5 | 13 | 19 | 5 | 0 | 3 | 1.60 | 10.43 | 1.53 | 3.99 | 5.83 | 5.83 | 1.46 |
| 1989 | Iowa Cubs | Amer | AAA | CHN | - | 27 | 4 | 7 | 3.25 | 64 | 0 | 0 | 0 | 64 | 28 | 5 | 97.0 | 87 | 43 | 35 | 9 | 41 | 62 | 7 | 0 | 3 | 1.32 | 8.07 | 0.84 | 3.80 | 5.75 | 3.99 | 1.51 |
| 1990 | Denver Zephyrs | Amer | AAA | MIL | - | 28 | 4 | 3 | 4.26 | 41 | 3 | 0 | 0 | 38 | 11 | 2 | 101.1 | 98 | 55 | 48 | 6 | 39 | 60 | 3 | 0 | 5 | 1.35 | 8.70 | 0.53 | 3.46 | 5.33 | 4.88 | 1.54 |
| 1990 | Milwaukee Brewers | AL | MLB | MIL | 35 | 28 | 0 | 0 | 135.00 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0.1 | 6 | 6 | 5 | 0 | 1 | 1 | 0 | 0 | 1 | 21.00 | 162.00 | 0.00 | 27.00 | 27.00 | 162.00 | 1.00 |
| 1991 | Tucson Toros | PCL | AAA | HOU | - | 29 | 4 | 2 | 2.40 | 30 | 0 | 0 | 0 | 30 | 9 | 3 | 56.1 | 49 | 16 | 15 | 1 | 17 | 44 | 4 | 0 | 5 | 1.17 | 7.83 | 0.16 | 2.72 | 7.03 | 2.56 | 2.59 |
| 1991 | Houston Astros | NL | MLB | HOU | 35 | 29 | 1 | 3 | 3.03 | 25 | 0 | 0 | 0 | 25 | 13 | 3 | 32.2 | 33 | 14 | 11 | 3 | 15 | 23 | 0 | 0 | 0 | 1.47 | 9.09 | 0.83 | 4.13 | 6.34 | 3.86 | 1.53 |
| 1992 | Tucson Toros | PCL | AAA | HOU | - | 30 | 6 | 6 | 2.19 | 58 | 0 | 0 | 0 | 58 | 44 | 18 | 82.1 | 68 | 29 | 20 | 3 | 36 | 70 | 7 | 0 | 0 | 1.26 | 7.43 | 0.33 | 3.94 | 7.65 | 3.17 | 1.94 |
| 1993 | Tucson Toros | PCL | AAA | HOU | - | 31 | 0 | 4 | 7.16 | 25 | 1 | 0 | 0 | 24 | 13 | 3 | 32.2 | 46 | 30 | 26 | 3 | 11 | 33 | 5 | 0 | 3 | 1.74 | 12.67 | 0.83 | 3.03 | 9.09 | 8.27 | 3.00 |
| Tot: | MLB (3 yrs) | MLB | 3 | 4 | 4.62 | 49 | 0 | 0 | 0 | 24 | 49 | 3 | 62.1 | 73 | 39 | 32 | 8 | 29 | 43 | 5 | 0 | 4 | 1.64 | 10.54 | 1.16 | 4.19 | 6.21 | 5.63 | 1.48 | ||||
| Tot: | AL (1 yrs) | AL | 0 | 0 | 135.00 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0.1 | 6 | 6 | 5 | 0 | 1 | 1 | 0 | 0 | 1 | 21.00 | 162.00 | 0.00 | 27.00 | 27.00 | 162.00 | 1.00 | ||||
| Tot: | NL (2 yrs) | NL | 3 | 4 | 3.92 | 47 | 0 | 0 | 0 | 24 | 47 | 3 | 62.0 | 67 | 33 | 27 | 8 | 28 | 42 | 5 | 0 | 3 | 1.53 | 9.73 | 1.16 | 4.06 | 6.10 | 4.79 | 1.50 | ||||
| Tot: | Minors (11 yrs) | Minors | 40 | 64 | 3.99 | 421 | 44 | 3 | 0 | 188 | 377 | 53 | 861.0 | 827 | 451 | 382 | 64 | 373 | 605 | 75 | 0 | 32 | 1.39 | 8.64 | 0.67 | 3.90 | 6.32 | 4.71 | 1.62 | ||||
| Tot: | A (1 yrs) | A | 3 | 2 | 2.42 | 8 | 6 | 1 | 0 | 1 | 2 | 1 | 44.2 | 32 | 15 | 12 | 6 | 14 | 35 | 5 | 0 | 6 | 1.03 | 6.45 | 1.21 | 2.82 | 7.05 | 3.02 | 2.50 | ||||
| Tot: | A+ (1 yrs) | A+ | 0 | 7 | 3.65 | 20 | 6 | 1 | 0 | 3 | 14 | 1 | 69.0 | 54 | 38 | 28 | 4 | 35 | 46 | 6 | 0 | 1 | 1.29 | 7.04 | 0.52 | 4.57 | 6.00 | 4.96 | 1.31 | ||||
| Tot: | AA (4 yrs) | AA | 9 | 21 | 4.55 | 90 | 18 | 0 | 0 | 46 | 72 | 13 | 211.2 | 216 | 129 | 107 | 16 | 114 | 131 | 20 | 0 | 2 | 1.56 | 9.18 | 0.68 | 4.85 | 5.57 | 5.49 | 1.15 | ||||
| Tot: | AAA (7 yrs) | AAA | 28 | 34 | 3.95 | 303 | 14 | 1 | 0 | 138 | 289 | 38 | 535.2 | 525 | 269 | 235 | 38 | 210 | 393 | 44 | 0 | 23 | 1.37 | 8.82 | 0.64 | 3.53 | 6.60 | 4.52 | 1.87 | ||||
| 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 |
| 1984 | Lodi Crushers | Calif | A+ | CHN | - | 22 | P | 20 | 6 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 1 | 1 | .333 | .333 | .500 | .833 | .167 | .167 | .500 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1984 | Midland Cubs | Tex | AA | CHN | - | 22 | P | 16 | 10 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 11 | 0 | 2 | .200 | .273 | .200 | .473 | .100 | .000 | .222 | 9.09 | 9.09 | 1.00 | 0.00 | |
| 1985 | Pittsfield Cubs | East | AA | CHN | - | 23 | P | 38 | 17 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 3 | 17 | 0 | 3 | .176 | .176 | .176 | .352 | .000 | .000 | .231 | 0.00 | 23.53 | 0.00 | 0.00 | |
| 1986 | Pittsfield Cubs | East | AA | CHN | - | 24 | P | 38 | 6 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 1 | .167 | .167 | .167 | .334 | .000 | .000 | .250 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1987 | Iowa Cubs | Amer | AAA | CHN | - | 25 | P | 53 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | .500 | .500 | .500 | 1.000 | .000 | .000 | .500 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1988 | Iowa Cubs | Amer | AAA | CHN | - | 26 | P | 32 | 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 | |
| 1988 | Chicago Cubs | NL | MLB | CHN | 38 | 26 | P | 22 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| 1989 | Iowa Cubs | Amer | AAA | CHN | - | 27 | P | 64 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 1 | .333 | .333 | .333 | .666 | .000 | .000 | 1.000 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1991 | Tucson Toros | PCL | AAA | HOU | - | 29 | P | 30 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 20.00 | 0.00 | 0.00 | |
| 1992 | Tucson Toros | PCL | AAA | HOU | - | 30 | P | 58 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 60.00 | 0.00 | 0.00 | |
| 1993 | Tucson Toros | PCL | AAA | HOU | - | 31 | P | 25 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 50.00 | 0.00 | 0.00 | |
| Tot: | MLB (1 yrs) | MLB | 22 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | |||||||||
| Tot: | NL (1 yrs) | NL | 22 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | |||||||||
| Tot: | Minors (9 yrs) | Minors | 374 | 57 | 2 | 10 | 1 | 0 | 0 | 3 | 0 | 0 | 1 | 16 | 0 | 1 | 1 | 0 | 0 | 11 | 60 | 1 | 9 | .175 | .186 | .193 | .379 | .035 | .018 | .238 | 1.67 | 26.67 | 16.00 | |||||||
| Tot: | A+ (1 yrs) | A+ | 20 | 6 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 1 | 1 | .333 | .333 | .500 | .833 | .167 | .167 | .500 | 0.00 | 33.33 | ||||||||
| Tot: | AA (3 yrs) | AA | 92 | 33 | 1 | 6 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 0 | 0 | 6 | 34 | 0 | 6 | .182 | .206 | .182 | .388 | .030 | .000 | .231 | 2.94 | 20.59 | 7.00 | |||||||
| Tot: | AAA (6 yrs) | AAA | 262 | 18 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 7 | 0 | 1 | 1 | 0 | 0 | 2 | 20 | 0 | 2 | .111 | .105 | .111 | .216 | .000 | .000 | .167 | 0.00 | 35.00 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 53 | 51 | 49 | 53 | 49 | 66 | .476 |