| 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 | Gulf Coast Rangers | GCL | Rk | TEX | - | 21 | 3 | 1 | 4.06 | 8 | 5 | 0 | 0 | 3 | 0 | 0 | 31.0 | 28 | 20 | 14 | 1 | 12 | 42 | 3 | 0 | 0 | 1.29 | 8.13 | 0.29 | 3.48 | 12.19 | 5.81 | 3.50 |
| 1980 | Greensboro Hornets | SAL | A | NYA | - | 22 | 2 | 2 | 3.67 | 11 | 6 | 2 | 1 | 5 | 0 | 1 | 49.0 | 41 | 27 | 20 | 4 | 19 | 50 | 1 | 0 | 1 | 1.22 | 7.53 | 0.73 | 3.49 | 9.18 | 4.96 | 2.63 |
| 1981 | Greensboro Hornets | SAL | A | NYA | - | 23 | 4 | 2 | 2.75 | 9 | 9 | 3 | 0 | 0 | 0 | 0 | 59.0 | 53 | 22 | 18 | 7 | 23 | 62 | 10 | 0 | 1 | 1.29 | 8.08 | 1.07 | 3.51 | 9.46 | 3.36 | 2.70 |
| 1981 | Fort Lauderdale Yankees | FSL | A+ | NYA | - | 23 | 1 | 4 | 5.60 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 45.0 | 50 | 34 | 28 | 2 | 31 | 37 | 9 | 0 | 1 | 1.80 | 10.00 | 0.40 | 6.20 | 7.40 | 6.80 | 1.19 |
| 1982 | Fort Lauderdale Yankees | FSL | A+ | NYA | - | 24 | 6 | 5 | 2.92 | 12 | 10 | 4 | 1 | 2 | 2 | 0 | 74.0 | 57 | 29 | 24 | 2 | 31 | 72 | 6 | 0 | 2 | 1.19 | 6.93 | 0.24 | 3.77 | 8.76 | 3.53 | 2.32 |
| 1982 | Nashville Sounds | Sou | AA | NYA | - | 24 | 5 | 6 | 2.17 | 14 | 14 | 4 | 1 | 0 | 0 | 0 | 91.1 | 85 | 34 | 22 | 6 | 17 | 69 | 1 | 0 | 3 | 1.12 | 8.38 | 0.59 | 1.68 | 6.80 | 3.35 | 4.06 |
| 1983 | Columbus Clippers | IL | AAA | NYA | - | 25 | 3 | 2 | 2.83 | 26 | 0 | 0 | 0 | 26 | 18 | 8 | 35.0 | 25 | 16 | 11 | 1 | 17 | 36 | 2 | 0 | 1 | 1.20 | 6.43 | 0.26 | 4.37 | 9.26 | 4.11 | 2.12 |
| 1983 | New York Yankees | AL | MLB | NYA | 47,57 | 25 | 8 | 2 | 3.33 | 15 | 15 | 3 | 1 | 0 | 0 | 0 | 97.1 | 101 | 41 | 36 | 3 | 25 | 27 | 0 | 0 | 1 | 1.29 | 9.34 | 0.28 | 2.31 | 2.50 | 3.79 | 1.08 |
| 1984 | New York Yankees | AL | MLB | NYA | 47 | 26 | 8 | 9 | 3.61 | 35 | 24 | 0 | 0 | 11 | 1 | 0 | 169.1 | 189 | 77 | 68 | 8 | 58 | 85 | 4 | 2 | 3 | 1.46 | 10.05 | 0.43 | 3.08 | 4.52 | 4.09 | 1.47 |
| 1985 | Chicago Cubs | NL | MLB | CHN | 31 | 27 | 6 | 10 | 4.36 | 38 | 23 | 0 | 0 | 15 | 5 | 0 | 154.2 | 177 | 86 | 75 | 23 | 45 | 70 | 3 | 2 | 0 | 1.44 | 10.30 | 1.34 | 2.62 | 4.07 | 5.00 | 1.56 |
| 1986 | Iowa Cubs | Amer | AAA | CHN | - | 28 | 1 | 0 | 1.80 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 15.0 | 10 | 3 | 3 | 1 | 8 | 9 | 0 | 0 | 0 | 1.20 | 6.00 | 0.60 | 4.80 | 5.40 | 1.80 | 1.13 |
| 1986 | Chicago Cubs | NL | MLB | CHN | 31 | 28 | 3 | 5 | 3.86 | 42 | 0 | 0 | 0 | 42 | 11 | 2 | 56.0 | 57 | 30 | 24 | 5 | 21 | 24 | 4 | 1 | 0 | 1.39 | 9.16 | 0.80 | 3.38 | 3.86 | 4.82 | 1.14 |
| 1986 | Minnesota Twins | AL | MLB | MIN | 37 | 28 | 0 | 0 | 9.92 | 15 | 0 | 0 | 0 | 15 | 7 | 0 | 16.1 | 27 | 19 | 18 | 3 | 4 | 10 | 2 | 0 | 2 | 1.90 | 14.88 | 1.65 | 2.20 | 5.51 | 10.47 | 2.50 |
| 1987 | Tucson Toros | PCL | AAA | HOU | - | 29 | 1 | 3 | 6.75 | 17 | 8 | 0 | 0 | 9 | 2 | 1 | 52.0 | 67 | 50 | 39 | 4 | 22 | 24 | 6 | 0 | 2 | 1.71 | 11.60 | 0.69 | 3.81 | 4.15 | 8.65 | 1.09 |
| Tot: | MLB (4 yrs) | MLB | 25 | 26 | 4.03 | 145 | 62 | 3 | 1 | 24 | 83 | 2 | 493.2 | 551 | 253 | 221 | 42 | 153 | 216 | 13 | 5 | 6 | 1.43 | 10.05 | 0.77 | 2.79 | 3.94 | 4.61 | 1.41 | ||||
| Tot: | AL (3 yrs) | AL | 16 | 11 | 3.88 | 65 | 39 | 3 | 1 | 8 | 26 | 0 | 283.0 | 317 | 137 | 122 | 14 | 87 | 122 | 6 | 2 | 6 | 1.43 | 10.08 | 0.45 | 2.77 | 3.88 | 4.36 | 1.40 | ||||
| Tot: | NL (2 yrs) | NL | 9 | 15 | 4.23 | 80 | 23 | 0 | 0 | 16 | 57 | 2 | 210.2 | 234 | 116 | 99 | 28 | 66 | 94 | 7 | 3 | 0 | 1.42 | 10.00 | 1.20 | 2.82 | 4.02 | 4.96 | 1.42 | ||||
| Tot: | Minors (7 yrs) | Minors | 26 | 25 | 3.57 | 107 | 62 | 13 | 3 | 22 | 45 | 10 | 451.1 | 416 | 235 | 179 | 28 | 180 | 401 | 38 | 0 | 11 | 1.32 | 8.30 | 0.56 | 3.59 | 8.00 | 4.69 | 2.23 | ||||
| Tot: | Rk (1 yrs) | Rk | 3 | 1 | 4.06 | 8 | 5 | 0 | 0 | 0 | 3 | 0 | 31.0 | 28 | 20 | 14 | 1 | 12 | 42 | 3 | 0 | 0 | 1.29 | 8.13 | 0.29 | 3.48 | 12.19 | 5.81 | 3.50 | ||||
| Tot: | A (2 yrs) | A | 6 | 4 | 3.17 | 20 | 15 | 5 | 1 | 0 | 5 | 1 | 108.0 | 94 | 49 | 38 | 11 | 42 | 112 | 11 | 0 | 2 | 1.26 | 7.83 | 0.92 | 3.50 | 9.33 | 4.08 | 2.67 | ||||
| Tot: | A+ (2 yrs) | A+ | 7 | 9 | 3.93 | 20 | 18 | 4 | 1 | 2 | 2 | 0 | 119.0 | 107 | 63 | 52 | 4 | 62 | 109 | 15 | 0 | 3 | 1.42 | 8.09 | 0.30 | 4.69 | 8.24 | 4.76 | 1.76 | ||||
| Tot: | AA (1 yrs) | AA | 5 | 6 | 2.17 | 14 | 14 | 4 | 1 | 0 | 0 | 0 | 91.1 | 85 | 34 | 22 | 6 | 17 | 69 | 1 | 0 | 3 | 1.12 | 8.38 | 0.59 | 1.68 | 6.80 | 3.35 | 4.06 | ||||
| Tot: | AAA (3 yrs) | AAA | 5 | 5 | 4.68 | 45 | 10 | 0 | 0 | 20 | 35 | 9 | 102.0 | 102 | 69 | 53 | 6 | 47 | 69 | 8 | 0 | 3 | 1.46 | 9.00 | 0.53 | 4.15 | 6.09 | 6.09 | 1.47 | ||||
| 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 |
| 1985 | Chicago Cubs | NL | MLB | CHN | 31 | 27 | P | 38 | 41 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 4 | 0 | 0 | 1 | 2 | 45 | 0 | 2 | .049 | .049 | .049 | .098 | .000 | .000 | .087 | 0.00 | 40.00 | 0.00 | 0.00 | |
| 1986 | Iowa Cubs | Amer | AAA | CHN | - | 28 | P | 2 | 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 | |
| 1986 | Chicago Cubs | NL | MLB | CHN | 31 | 28 | P | 42 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 1 | .167 | .167 | .167 | .334 | .000 | .000 | 1.000 | 0.00 | 83.33 | 0.00 | 0.00 | |
| 1986 | Minnesota Twins | AL | MLB | MIN | 37 | 28 | P | 15 | 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 | |
| 1987 | Tucson Toros | PCL | AAA | HOU | - | 29 | P | 17 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 1 | .333 | .500 | .333 | .833 | .333 | .000 | .333 | 25.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (2 yrs) | MLB | 95 | 48 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | 4 | 0 | 0 | 1 | 3 | 52 | 0 | 3 | .063 | .063 | .063 | .125 | .000 | .000 | .125 | 0.00 | 46.15 | ||||||||
| Tot: | AL (1 yrs) | AL | 15 | 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: | NL (2 yrs) | NL | 80 | 47 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 4 | 0 | 0 | 1 | 3 | 51 | 0 | 3 | .064 | .064 | .064 | .128 | .000 | .000 | .125 | 0.00 | 45.10 | ||||||||
| Tot: | Minors (2 yrs) | Minors | 19 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .167 | .286 | .167 | .452 | .167 | .000 | .250 | 14.29 | 28.57 | 2.00 | |||||||
| Tot: | AAA (2 yrs) | AAA | 19 | 6 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .167 | .286 | .167 | .452 | .167 | .000 | .250 | 14.29 | 28.57 | 2.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 51 | 63 | 53 | 57 | 53 | 60 | .536 |