| 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 | Detroit Tigers | AL | MLB | DET | 19 | 20 | 15 | 7 | 3.09 | 28 | 28 | 16 | 1 | 0 | 0 | 0 | 218.1 | 222 | 87 | 75 | 25 | 34 | 92 | 2 | 2 | 7 | 1.17 | 9.15 | 1.03 | 1.40 | 3.79 | 3.59 | 2.71 |
| 1978 | Detroit Tigers | AL | MLB | DET | 19 | 21 | 9 | 12 | 3.14 | 28 | 28 | 11 | 2 | 0 | 0 | 0 | 209.1 | 205 | 83 | 73 | 17 | 41 | 57 | 3 | 0 | 2 | 1.18 | 8.81 | 0.73 | 1.76 | 2.45 | 3.57 | 1.39 |
| 1979 | Detroit Tigers | AL | MLB | DET | 19 | 22 | 4 | 4 | 3.51 | 16 | 16 | 4 | 1 | 0 | 0 | 0 | 97.1 | 101 | 52 | 38 | 12 | 30 | 33 | 2 | 0 | 6 | 1.35 | 9.34 | 1.11 | 2.77 | 3.05 | 4.81 | 1.10 |
| 1980 | Detroit Tigers | AL | MLB | DET | 19 | 23 | 6 | 9 | 3.92 | 42 | 13 | 2 | 1 | 29 | 17 | 4 | 144.2 | 152 | 68 | 63 | 11 | 49 | 49 | 9 | 0 | 5 | 1.39 | 9.46 | 0.68 | 3.05 | 3.05 | 4.23 | 1.00 |
| 1981 | Detroit Tigers | AL | MLB | DET | 19 | 24 | 5 | 5 | 3.63 | 28 | 9 | 2 | 2 | 19 | 12 | 3 | 104.0 | 99 | 42 | 42 | 12 | 25 | 46 | 2 | 0 | 3 | 1.19 | 8.57 | 1.04 | 2.16 | 3.98 | 3.63 | 1.84 |
| 1982 | Detroit Tigers | AL | MLB | DET | 19 | 25 | 3 | 0 | 1.63 | 8 | 2 | 0 | 0 | 6 | 3 | 1 | 27.2 | 17 | 5 | 5 | 2 | 7 | 15 | 0 | 0 | 1 | 0.87 | 5.53 | 0.65 | 2.28 | 4.88 | 1.63 | 2.14 |
| 1983 | Detroit Tigers | AL | MLB | DET | 19 | 26 | 8 | 3 | 3.43 | 29 | 16 | 1 | 0 | 13 | 7 | 2 | 105.0 | 100 | 50 | 40 | 10 | 29 | 63 | 1 | 3 | 1 | 1.23 | 8.57 | 0.86 | 2.49 | 5.40 | 4.29 | 2.17 |
| 1984 | Detroit Tigers | AL | MLB | DET | 19 | 27 | 7 | 6 | 3.74 | 29 | 16 | 0 | 0 | 13 | 6 | 0 | 101.0 | 110 | 49 | 42 | 13 | 18 | 48 | 3 | 1 | 2 | 1.27 | 9.80 | 1.16 | 1.60 | 4.28 | 4.37 | 2.67 |
| 1985 | Texas Rangers | AL | MLB | TEX | 30 | 28 | 3 | 7 | 4.19 | 34 | 4 | 0 | 0 | 30 | 16 | 7 | 88.0 | 100 | 45 | 41 | 10 | 22 | 42 | 1 | 0 | 2 | 1.39 | 10.23 | 1.02 | 2.25 | 4.30 | 4.60 | 1.91 |
| 1986 | Buffalo Bisons | Amer | AAA | CHA | - | 29 | 4 | 4 | 3.95 | 13 | 11 | 1 | 0 | 2 | 1 | 0 | 68.1 | 72 | 32 | 30 | 6 | 5 | 39 | 0 | 0 | 2 | 1.13 | 9.48 | 0.79 | 0.66 | 5.14 | 4.21 | 7.80 |
| 1986 | Texas Rangers | AL | MLB | TEX | 30 | 29 | 0 | 0 | 5.91 | 6 | 0 | 0 | 0 | 6 | 0 | 0 | 10.2 | 19 | 9 | 7 | 1 | 3 | 3 | 0 | 0 | 0 | 2.06 | 16.03 | 0.84 | 2.53 | 2.53 | 7.59 | 1.00 |
| 1987 | Maine Guides | IL | AAA | PHI | - | 30 | 3 | 0 | 2.92 | 7 | 5 | 2 | 0 | 2 | 1 | 0 | 37.0 | 27 | 12 | 12 | 6 | 12 | 25 | 0 | 0 | 1 | 1.05 | 6.57 | 1.46 | 2.92 | 6.08 | 2.92 | 2.08 |
| Tot: | MLB (10 yrs) | MLB | 60 | 53 | 3.47 | 248 | 132 | 36 | 7 | 61 | 116 | 17 | 1106.0 | 1125 | 490 | 426 | 113 | 258 | 448 | 23 | 6 | 29 | 1.25 | 9.15 | 0.92 | 2.10 | 3.65 | 3.99 | 1.74 | ||||
| Tot: | AL (10 yrs) | AL | 60 | 53 | 3.47 | 248 | 132 | 36 | 7 | 61 | 116 | 17 | 1106.0 | 1125 | 490 | 426 | 113 | 258 | 448 | 23 | 6 | 29 | 1.25 | 9.15 | 0.92 | 2.10 | 3.65 | 3.99 | 1.74 | ||||
| Tot: | Minors (2 yrs) | Minors | 7 | 4 | 3.59 | 20 | 16 | 3 | 0 | 2 | 4 | 0 | 105.1 | 99 | 44 | 42 | 12 | 17 | 64 | 0 | 0 | 3 | 1.10 | 8.46 | 1.03 | 1.45 | 5.47 | 3.76 | 3.76 | ||||
| Tot: | AAA (2 yrs) | AAA | 7 | 4 | 3.59 | 20 | 16 | 3 | 0 | 2 | 4 | 0 | 105.1 | 99 | 44 | 42 | 12 | 17 | 64 | 0 | 0 | 3 | 1.10 | 8.46 | 1.03 | 1.45 | 5.47 | 3.76 | 3.76 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 28 | 86 | 53 | 69 | 53 | 57 | .514 |