| 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 |
| 1977 | Gulf Coast Rangers | GCL | Rk | TEX | - | 20 | 3 | 2 | 1.29 | 6 | 5 | 3 | 0 | 1 | 0 | 0 | 42.0 | 28 | 10 | 6 | 0 | 11 | 23 | 2 | 0 | 0 | 0.93 | 6.00 | 0.00 | 2.36 | 4.93 | 2.14 | 2.09 |
| 1977 | Asheville Tourists | Wcar | A | TEX | - | 20 | 1 | 0 | 1.13 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 16.0 | 13 | 4 | 2 | 0 | 6 | 13 | 0 | 0 | 0 | 1.19 | 7.31 | 0.00 | 3.38 | 7.31 | 2.25 | 2.17 |
| 1978 | Asheville Tourists | Wcar | A | TEX | - | 21 | 10 | 9 | 3.33 | 24 | 23 | 7 | 2 | 1 | 0 | 0 | 154.0 | 150 | 81 | 57 | 12 | 77 | 103 | 6 | 0 | 2 | 1.47 | 8.77 | 0.70 | 4.50 | 6.02 | 4.73 | 1.34 |
| 1979 | Tulsa Drillers | Tex | AA | TEX | - | 22 | 9 | 12 | 5.11 | 26 | 25 | 6 | 1 | 1 | 0 | 0 | 155.0 | 197 | 106 | 88 | 9 | 53 | 82 | 7 | 0 | 6 | 1.61 | 11.44 | 0.52 | 3.08 | 4.76 | 6.15 | 1.55 |
| 1980 | Charleston Charlies | IL | AAA | TEX | - | 23 | 10 | 7 | 3.32 | 22 | 21 | 14 | 3 | 1 | 0 | 1 | 152.0 | 141 | 57 | 56 | 9 | 50 | 71 | 9 | 1 | 4 | 1.26 | 8.35 | 0.53 | 2.96 | 4.20 | 3.38 | 1.42 |
| 1980 | Texas Rangers | AL | MLB | TEX | 29 | 23 | 3 | 3 | 4.08 | 6 | 6 | 1 | 0 | 0 | 0 | 0 | 35.1 | 34 | 19 | 16 | 2 | 13 | 27 | 1 | 0 | 0 | 1.33 | 8.66 | 0.51 | 3.31 | 6.88 | 4.84 | 2.08 |
| 1981 | Wichita Aeros | Amer | AAA | TEX | - | 24 | 8 | 10 | 5.63 | 24 | 24 | 5 | 1 | 0 | 0 | 0 | 136.0 | 171 | 100 | 85 | 19 | 60 | 87 | 7 | 2 | 0 | 1.70 | 11.32 | 1.26 | 3.97 | 5.76 | 6.62 | 1.45 |
| 1981 | Texas Rangers | AL | MLB | TEX | 29 | 24 | 1 | 2 | 1.63 | 5 | 3 | 1 | 1 | 2 | 1 | 0 | 27.2 | 18 | 6 | 5 | 0 | 8 | 19 | 0 | 0 | 0 | 0.94 | 5.86 | 0.00 | 2.60 | 6.18 | 1.95 | 2.38 |
| 1982 | Denver Bears | Amer | AAA | TEX | - | 25 | 5 | 1 | 2.75 | 8 | 8 | 1 | 1 | 0 | 0 | 0 | 59.0 | 54 | 20 | 18 | 5 | 14 | 31 | 1 | 0 | 0 | 1.15 | 8.24 | 0.76 | 2.14 | 4.73 | 3.05 | 2.21 |
| 1982 | Texas Rangers | AL | MLB | TEX | 29 | 25 | 1 | 5 | 4.87 | 18 | 13 | 2 | 0 | 5 | 3 | 1 | 94.1 | 102 | 53 | 51 | 10 | 34 | 39 | 0 | 0 | 2 | 1.44 | 9.73 | 0.95 | 3.24 | 3.72 | 5.06 | 1.15 |
| 1983 | Texas Rangers | AL | MLB | TEX | 29 | 26 | 6 | 6 | 3.51 | 38 | 6 | 1 | 1 | 32 | 14 | 5 | 123.0 | 128 | 50 | 48 | 8 | 41 | 58 | 4 | 0 | 1 | 1.37 | 9.37 | 0.59 | 3.00 | 4.24 | 3.66 | 1.41 |
| 1984 | Minnesota Twins | AL | MLB | MIN | 32 | 27 | 13 | 11 | 3.44 | 34 | 34 | 8 | 1 | 0 | 0 | 0 | 225.0 | 242 | 98 | 86 | 18 | 53 | 83 | 3 | 0 | 4 | 1.31 | 9.68 | 0.72 | 2.12 | 3.32 | 3.92 | 1.57 |
| 1985 | Minnesota Twins | AL | MLB | MIN | 32 | 28 | 11 | 14 | 4.98 | 34 | 33 | 8 | 2 | 1 | 0 | 0 | 207.2 | 239 | 125 | 115 | 24 | 43 | 92 | 5 | 1 | 6 | 1.36 | 10.36 | 1.04 | 1.86 | 3.99 | 5.42 | 2.14 |
| 1986 | Minnesota Twins | AL | MLB | MIN | 32 | 29 | 0 | 3 | 6.30 | 16 | 10 | 1 | 0 | 6 | 1 | 0 | 70.0 | 82 | 50 | 49 | 11 | 24 | 29 | 4 | 0 | 1 | 1.51 | 10.54 | 1.41 | 3.09 | 3.73 | 6.43 | 1.21 |
| 1986 | Cleveland Indians | AL | MLB | CLE | 38 | 29 | 1 | 5 | 6.93 | 13 | 8 | 1 | 1 | 5 | 4 | 0 | 50.2 | 86 | 43 | 39 | 6 | 13 | 16 | 2 | 0 | 3 | 1.95 | 15.28 | 1.07 | 2.31 | 2.84 | 7.64 | 1.23 |
| Tot: | MLB (7 yrs) | MLB | 36 | 49 | 4.42 | 164 | 113 | 23 | 6 | 23 | 51 | 6 | 833.2 | 931 | 444 | 409 | 79 | 229 | 363 | 19 | 1 | 17 | 1.39 | 10.05 | 0.85 | 2.47 | 3.92 | 4.79 | 1.59 | ||||
| Tot: | AL (7 yrs) | AL | 36 | 49 | 4.42 | 164 | 113 | 23 | 6 | 23 | 51 | 6 | 833.2 | 931 | 444 | 409 | 79 | 229 | 363 | 19 | 1 | 17 | 1.39 | 10.05 | 0.85 | 2.47 | 3.92 | 4.79 | 1.59 | ||||
| Tot: | Minors (6 yrs) | Minors | 46 | 41 | 3.93 | 112 | 108 | 36 | 8 | 0 | 4 | 1 | 714.0 | 754 | 378 | 312 | 54 | 271 | 410 | 32 | 3 | 12 | 1.44 | 9.50 | 0.68 | 3.42 | 5.17 | 4.76 | 1.51 | ||||
| Tot: | Rk (1 yrs) | Rk | 3 | 2 | 1.29 | 6 | 5 | 3 | 0 | 0 | 1 | 0 | 42.0 | 28 | 10 | 6 | 0 | 11 | 23 | 2 | 0 | 0 | 0.93 | 6.00 | 0.00 | 2.36 | 4.93 | 2.14 | 2.09 | ||||
| Tot: | A (2 yrs) | A | 11 | 9 | 3.12 | 26 | 25 | 7 | 2 | 0 | 1 | 0 | 170.0 | 163 | 85 | 59 | 12 | 83 | 116 | 6 | 0 | 2 | 1.45 | 8.63 | 0.64 | 4.39 | 6.14 | 4.50 | 1.40 | ||||
| Tot: | AA (1 yrs) | AA | 9 | 12 | 5.11 | 26 | 25 | 6 | 1 | 0 | 1 | 0 | 155.0 | 197 | 106 | 88 | 9 | 53 | 82 | 7 | 0 | 6 | 1.61 | 11.44 | 0.52 | 3.08 | 4.76 | 6.15 | 1.55 | ||||
| Tot: | AAA (3 yrs) | AAA | 23 | 18 | 4.12 | 54 | 53 | 20 | 5 | 0 | 1 | 1 | 347.0 | 366 | 177 | 159 | 33 | 124 | 189 | 17 | 3 | 4 | 1.41 | 9.49 | 0.86 | 3.22 | 4.90 | 4.59 | 1.52 | ||||
| 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 |
| Tot: | Minors (1 yrs) | Minors | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | Rk (1 yrs) | Rk | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | A (1 yrs) | A | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 36 | 73 | 45 | 60 | 45 | 65 | .483 |