| 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 | Gulf Coast Rangers | GCL | Rk | TEX | - | 17 | 5 | 0 | 2.25 | 14 | 5 | 0 | 0 | 9 | 0 | 3 | 52.0 | 41 | 18 | 13 | 0 | 20 | 28 | 2 | 0 | 1 | 1.17 | 7.10 | 0.00 | 3.46 | 4.85 | 3.12 | 1.40 |
| 1980 | Fort Lauderdale Yankees | FSL | A+ | NYA | - | 19 | 20 | 3 | 1.97 | 27 | 25 | 16 | 5 | 2 | 0 | 0 | 196.0 | 146 | 51 | 43 | 4 | 70 | 130 | 4 | 0 | 1 | 1.10 | 6.70 | 0.18 | 3.21 | 5.97 | 2.34 | 1.86 |
| 1981 | Fort Lauderdale Yankees | FSL | A+ | NYA | - | 20 | 0 | 0 | 5.40 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 10.0 | 9 | 6 | 6 | 1 | 5 | 8 | 2 | 0 | 0 | 1.40 | 8.10 | 0.90 | 4.50 | 7.20 | 5.40 | 1.60 |
| 1981 | Columbus Clippers | IL | AAA | NYA | - | 20 | 4 | 0 | 2.53 | 5 | 4 | 0 | 0 | 1 | 1 | 1 | 32.0 | 25 | 9 | 9 | 3 | 14 | 37 | 0 | 1 | 0 | 1.22 | 7.03 | 0.84 | 3.94 | 10.41 | 2.53 | 2.64 |
| 1981 | New York Yankees | AL | MLB | NYA | 46,55 | 20 | 3 | 1 | 4.81 | 8 | 7 | 0 | 0 | 1 | 0 | 0 | 39.1 | 40 | 24 | 21 | 5 | 23 | 16 | 2 | 0 | 1 | 1.60 | 9.15 | 1.14 | 5.26 | 3.66 | 5.49 | 0.70 |
| 1982 | Salt Lake Gulls | PCL | AAA | SEA | - | 21 | 1 | 3 | 3.35 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | 37.2 | 36 | 18 | 14 | 1 | 28 | 22 | 0 | 0 | 1 | 1.70 | 8.60 | 0.24 | 6.69 | 5.26 | 4.30 | 0.79 |
| 1982 | Seattle Mariners | AL | MLB | SEA | 24,43 | 21 | 6 | 9 | 4.62 | 22 | 19 | 2 | 1 | 3 | 2 | 0 | 122.2 | 133 | 70 | 63 | 16 | 60 | 71 | 4 | 2 | 2 | 1.57 | 9.76 | 1.17 | 4.40 | 5.21 | 5.14 | 1.18 |
| 1983 | Salt Lake Gulls | PCL | AAA | SEA | - | 22 | 9 | 4 | 5.18 | 16 | 16 | 7 | 2 | 0 | 0 | 0 | 99.0 | 115 | 65 | 57 | 11 | 28 | 74 | 1 | 0 | 1 | 1.44 | 10.45 | 1.00 | 2.55 | 6.73 | 5.91 | 2.64 |
| 1983 | Seattle Mariners | AL | MLB | SEA | 24 | 22 | 0 | 3 | 7.88 | 10 | 5 | 1 | 0 | 5 | 2 | 0 | 32.0 | 38 | 29 | 28 | 6 | 21 | 11 | 1 | 0 | 1 | 1.84 | 10.69 | 1.69 | 5.91 | 3.09 | 8.16 | 0.52 |
| 1984 | Salt Lake Gulls | PCL | AAA | SEA | - | 23 | 6 | 8 | 5.63 | 17 | 17 | 6 | 1 | 0 | 0 | 0 | 112.0 | 138 | 75 | 70 | 15 | 54 | 89 | 11 | 0 | 5 | 1.71 | 11.09 | 1.21 | 4.34 | 7.15 | 6.03 | 1.65 |
| 1984 | Chicago White Sox | AL | MLB | CHA | 30 | 23 | 3 | 5 | 4.46 | 20 | 9 | 2 | 0 | 11 | 4 | 1 | 74.2 | 72 | 38 | 37 | 9 | 17 | 36 | 4 | 1 | 1 | 1.19 | 8.68 | 1.08 | 2.05 | 4.34 | 4.58 | 2.12 |
| 1985 | Chicago White Sox | AL | MLB | CHA | 30 | 24 | 10 | 10 | 4.26 | 46 | 18 | 1 | 0 | 28 | 11 | 2 | 145.2 | 144 | 74 | 69 | 23 | 67 | 101 | 11 | 1 | 7 | 1.45 | 8.90 | 1.42 | 4.14 | 6.24 | 4.57 | 1.51 |
| 1986 | Chicago White Sox | AL | MLB | CHA | 30 | 25 | 6 | 6 | 3.85 | 54 | 1 | 0 | 0 | 53 | 26 | 6 | 114.2 | 118 | 52 | 49 | 7 | 41 | 70 | 3 | 0 | 3 | 1.39 | 9.26 | 0.55 | 3.22 | 5.49 | 4.08 | 1.71 |
| 1987 | Oakland Athletics | AL | MLB | OAK | 19,40 | 26 | 6 | 5 | 3.93 | 54 | 6 | 0 | 0 | 48 | 15 | 3 | 123.2 | 120 | 58 | 54 | 12 | 35 | 94 | 7 | 0 | 5 | 1.25 | 8.73 | 0.87 | 2.55 | 6.84 | 4.22 | 2.69 |
| 1988 | Oakland Athletics | AL | MLB | OAK | 19 | 27 | 9 | 6 | 3.06 | 54 | 1 | 0 | 0 | 53 | 20 | 3 | 111.2 | 93 | 42 | 38 | 9 | 38 | 67 | 4 | 6 | 3 | 1.17 | 7.50 | 0.73 | 3.06 | 5.40 | 3.39 | 1.76 |
| 1989 | Oakland Athletics | AL | MLB | OAK | 19 | 28 | 3 | 5 | 3.26 | 50 | 0 | 0 | 0 | 50 | 15 | 3 | 80.0 | 60 | 33 | 29 | 5 | 30 | 70 | 5 | 0 | 2 | 1.13 | 6.75 | 0.56 | 3.38 | 7.88 | 3.71 | 2.33 |
| 1990 | Oakland Athletics | AL | MLB | OAK | 19 | 29 | 3 | 3 | 1.57 | 51 | 0 | 0 | 0 | 51 | 17 | 5 | 74.2 | 55 | 14 | 13 | 5 | 17 | 38 | 1 | 0 | 3 | 0.96 | 6.63 | 0.60 | 2.05 | 4.58 | 1.69 | 2.24 |
| 1991 | Oakland Athletics | AL | MLB | OAK | 19 | 30 | 1 | 5 | 6.84 | 44 | 0 | 0 | 0 | 44 | 11 | 0 | 48.2 | 60 | 38 | 37 | 12 | 23 | 23 | 0 | 0 | 3 | 1.71 | 11.10 | 2.22 | 4.25 | 4.25 | 7.03 | 1.00 |
| 1992 | Oakland Athletics | AL | MLB | OAK | 19 | 31 | 3 | 1 | 6.45 | 28 | 2 | 0 | 0 | 26 | 8 | 0 | 51.2 | 68 | 37 | 37 | 5 | 22 | 23 | 2 | 0 | 0 | 1.74 | 11.85 | 0.87 | 3.83 | 4.01 | 6.45 | 1.05 |
| 1993 | California Angels | AL | MLB | CAL | 16 | 32 | 0 | 5 | 3.08 | 46 | 0 | 0 | 0 | 46 | 20 | 4 | 52.2 | 50 | 25 | 18 | 3 | 23 | 31 | 1 | 0 | 2 | 1.39 | 8.54 | 0.51 | 3.93 | 5.30 | 4.27 | 1.35 |
| 1993 | Texas Rangers | AL | MLB | TEX | 23 | 32 | 0 | 0 | 3.38 | 6 | 0 | 0 | 0 | 6 | 2 | 1 | 8.0 | 10 | 3 | 3 | 0 | 1 | 4 | 1 | 0 | 0 | 1.38 | 11.25 | 0.00 | 1.13 | 4.50 | 3.38 | 4.00 |
| Tot: | MLB (13 yrs) | MLB | 53 | 64 | 4.13 | 493 | 68 | 6 | 1 | 153 | 425 | 28 | 1080.0 | 1061 | 537 | 496 | 117 | 418 | 655 | 46 | 10 | 33 | 1.37 | 8.84 | 0.98 | 3.48 | 5.46 | 4.48 | 1.57 | ||||
| Tot: | AL (13 yrs) | AL | 53 | 64 | 4.13 | 493 | 68 | 6 | 1 | 153 | 425 | 28 | 1080.0 | 1061 | 537 | 496 | 117 | 418 | 655 | 46 | 10 | 33 | 1.37 | 8.84 | 0.98 | 3.48 | 5.46 | 4.48 | 1.57 | ||||
| Tot: | Minors (6 yrs) | Minors | 45 | 18 | 3.54 | 86 | 74 | 31 | 8 | 1 | 12 | 4 | 538.2 | 510 | 242 | 212 | 35 | 219 | 388 | 20 | 1 | 9 | 1.35 | 8.52 | 0.58 | 3.66 | 6.48 | 4.04 | 1.77 | ||||
| Tot: | Rk (1 yrs) | Rk | 5 | 0 | 2.25 | 14 | 5 | 0 | 0 | 0 | 9 | 3 | 52.0 | 41 | 18 | 13 | 0 | 20 | 28 | 2 | 0 | 1 | 1.17 | 7.10 | 0.00 | 3.46 | 4.85 | 3.12 | 1.40 | ||||
| Tot: | A+ (2 yrs) | A+ | 20 | 3 | 2.14 | 29 | 27 | 16 | 5 | 0 | 2 | 0 | 206.0 | 155 | 57 | 49 | 5 | 75 | 138 | 6 | 0 | 1 | 1.12 | 6.77 | 0.22 | 3.28 | 6.03 | 2.49 | 1.84 | ||||
| Tot: | AAA (4 yrs) | AAA | 20 | 15 | 4.81 | 43 | 42 | 15 | 3 | 1 | 1 | 1 | 280.2 | 314 | 167 | 150 | 30 | 124 | 222 | 12 | 1 | 7 | 1.56 | 10.07 | 0.96 | 3.98 | 7.12 | 5.36 | 1.79 | ||||
| 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 |
| 1988 | Oakland Athletics | Championship Series | Playoffs | 27 | 2 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4.2 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1.29 | 9.64 | 0.00 | 1.93 | 0.00 | 0.00 | 0.00 |
| 1988 | Oakland Athletics | World Series | Playoffs | 27 | 0 | 0 | 1.42 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 6.1 | 4 | 0 | 1 | 0 | 3 | 3 | 0 | 0 | 0 | 1.11 | 5.68 | 0.00 | 4.26 | 4.26 | 0.00 | 1.00 |
| 1989 | Oakland Athletics | Championship Series | Playoffs | 28 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.1 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0.75 | 6.75 | 0.00 | 0.00 | 13.50 | 0.00 | 0.00 |
| 1989 | Oakland Athletics | World Series | Playoffs | 28 | 0 | 0 | 54.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 6 | 0 | 2 | 1 | 0 | 0 | 0 | 6.00 | 36.00 | 0.00 | 18.00 | 9.00 | 0.00 | 0.50 |
| 1990 | Oakland Athletics | Championship Series | Playoffs | 29 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.80 | 16.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 1990 | Oakland Athletics | World Series | Playoffs | 29 | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5.0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 1.00 | 5.40 | 0.00 | 3.60 | 0.00 | 0.00 | 0.00 |
| Tot: | Playoffs (3 Yrs) | Playoffs | 2 | 0 | 3.15 | 11 | 0 | 0 | 0 | 0 | 11 | 0 | 20.0 | 20 | 0 | 7 | 0 | 8 | 6 | 0 | 0 | 0 | 1.40 | 9.00 | 0.00 | 3.60 | 2.70 | 0.00 | 0.75 |
| 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 | Salt Lake Gulls | PCL | AAA | SEA | - | 23 | P | 20 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .167 | .167 | .167 | .334 | .000 | .000 | .200 | 0.00 | 14.29 | 0.00 | 0.00 | |
| 1985 | Chicago White Sox | AL | MLB | CHA | 30 | 24 | P | 47 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (4 yrs) | MLB | 184 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | 1.000 | .000 | .000 | 0.00 | 0.00 | ||||||||
| Tot: | AL (4 yrs) | AL | 184 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | 1.000 | .000 | .000 | 0.00 | 0.00 | ||||||||
| Tot: | Minors (1 yrs) | Minors | 20 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .167 | .167 | .167 | .333 | .000 | .000 | .200 | 0.00 | 14.29 | ||||||||
| Tot: | AAA (1 yrs) | AAA | 20 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .167 | .167 | .167 | .333 | .000 | .000 | .200 | 0.00 | 14.29 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 47 | 49 | 52 | 51 | 52 | 68 | .524 |