| 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 | Tulsa Drillers | Tex | AA | TEX | - | 21 | 13 | 4 | 2.51 | 23 | 23 | 6 | 4 | 0 | 0 | 0 | 154.0 | 130 | 53 | 43 | 6 | 72 | 129 | 7 | 1 | 0 | 1.31 | 7.60 | 0.35 | 4.21 | 7.54 | 3.10 | 1.79 |
| 1978 | Tucson Toros | PCL | AAA | TEX | - | 22 | 8 | 9 | 6.26 | 23 | 23 | 4 | 0 | 0 | 0 | 0 | 125.0 | 147 | 100 | 87 | 7 | 83 | 126 | 8 | 0 | 6 | 1.84 | 10.58 | 0.50 | 5.98 | 9.07 | 7.20 | 1.52 |
| 1978 | Texas Rangers | AL | MLB | TEX | 44 | 22 | 1 | 0 | 4.15 | 3 | 1 | 0 | 0 | 2 | 2 | 0 | 8.2 | 11 | 4 | 4 | 0 | 1 | 8 | 0 | 0 | 0 | 1.38 | 11.42 | 0.00 | 1.04 | 8.31 | 4.15 | 8.00 |
| 1979 | Tucson Toros | PCL | AAA | TEX | - | 23 | 6 | 6 | 3.60 | 13 | 13 | 4 | 1 | 0 | 0 | 0 | 95.0 | 89 | 43 | 38 | 1 | 42 | 65 | 5 | 0 | 6 | 1.38 | 8.43 | 0.09 | 3.98 | 6.16 | 4.07 | 1.55 |
| 1979 | Texas Rangers | AL | MLB | TEX | 44 | 23 | 4 | 4 | 4.04 | 20 | 6 | 1 | 0 | 14 | 4 | 0 | 78.0 | 50 | 36 | 35 | 5 | 30 | 58 | 0 | 1 | 5 | 1.03 | 5.77 | 0.58 | 3.46 | 6.69 | 4.15 | 1.93 |
| 1980 | Texas Rangers | AL | MLB | TEX | 44 | 24 | 13 | 4 | 2.63 | 53 | 2 | 0 | 0 | 51 | 35 | 8 | 109.2 | 98 | 37 | 32 | 4 | 50 | 104 | 3 | 0 | 2 | 1.35 | 8.04 | 0.33 | 4.10 | 8.53 | 3.04 | 2.08 |
| 1981 | Texas Rangers | AL | MLB | TEX | 44 | 25 | 9 | 9 | 3.64 | 22 | 22 | 6 | 2 | 0 | 0 | 0 | 146.0 | 115 | 67 | 59 | 12 | 57 | 98 | 1 | 0 | 6 | 1.18 | 7.09 | 0.74 | 3.51 | 6.04 | 4.13 | 1.72 |
| 1982 | Texas Rangers | AL | MLB | TEX | 44 | 26 | 10 | 8 | 3.44 | 56 | 1 | 0 | 0 | 55 | 41 | 7 | 89.0 | 95 | 38 | 34 | 6 | 37 | 61 | 2 | 1 | 2 | 1.48 | 9.61 | 0.61 | 3.74 | 6.17 | 3.84 | 1.65 |
| 1983 | Texas Rangers | AL | MLB | TEX | 44 | 27 | 8 | 13 | 3.49 | 28 | 26 | 9 | 2 | 2 | 0 | 0 | 183.0 | 175 | 86 | 71 | 9 | 62 | 92 | 2 | 0 | 3 | 1.30 | 8.61 | 0.44 | 3.05 | 4.52 | 4.23 | 1.48 |
| 1984 | Texas Rangers | AL | MLB | TEX | 44 | 28 | 8 | 12 | 3.94 | 35 | 32 | 5 | 1 | 3 | 2 | 0 | 223.2 | 249 | 110 | 98 | 19 | 54 | 123 | 3 | 0 | 4 | 1.35 | 10.02 | 0.76 | 2.17 | 4.95 | 4.43 | 2.28 |
| 1985 | Milwaukee Brewers | AL | MLB | MIL | 18 | 29 | 8 | 18 | 3.80 | 39 | 29 | 11 | 1 | 10 | 8 | 2 | 217.2 | 212 | 112 | 92 | 34 | 65 | 125 | 6 | 0 | 4 | 1.27 | 8.77 | 1.41 | 2.69 | 5.17 | 4.63 | 1.92 |
| 1986 | Milwaukee Brewers | AL | MLB | MIL | 18 | 30 | 6 | 8 | 3.52 | 27 | 14 | 5 | 1 | 13 | 4 | 0 | 130.1 | 120 | 62 | 51 | 13 | 35 | 80 | 5 | 0 | 3 | 1.19 | 8.29 | 0.90 | 2.42 | 5.52 | 4.28 | 2.29 |
| 1986 | Houston Astros | NL | MLB | HOU | 44 | 30 | 5 | 2 | 2.32 | 12 | 8 | 1 | 0 | 4 | 2 | 0 | 54.1 | 50 | 19 | 14 | 3 | 9 | 40 | 2 | 1 | 0 | 1.09 | 8.28 | 0.50 | 1.49 | 6.63 | 3.15 | 4.44 |
| 1987 | Houston Astros | NL | MLB | HOU | 44 | 31 | 9 | 10 | 3.59 | 33 | 30 | 3 | 1 | 3 | 0 | 0 | 195.2 | 184 | 87 | 78 | 17 | 69 | 134 | 3 | 1 | 5 | 1.29 | 8.46 | 0.78 | 3.17 | 6.16 | 4.00 | 1.94 |
| 1988 | Houston Astros | NL | MLB | HOU | 44 | 32 | 8 | 13 | 3.84 | 44 | 20 | 3 | 0 | 24 | 9 | 3 | 192.0 | 189 | 86 | 82 | 20 | 48 | 129 | 1 | 2 | 7 | 1.23 | 8.86 | 0.94 | 2.25 | 6.05 | 4.03 | 2.69 |
| 1989 | Houston Astros | NL | MLB | HOU | 44 | 33 | 11 | 4 | 2.36 | 68 | 0 | 0 | 0 | 68 | 26 | 7 | 122.0 | 92 | 34 | 32 | 8 | 33 | 104 | 2 | 3 | 2 | 1.02 | 6.79 | 0.59 | 2.43 | 7.67 | 2.51 | 3.15 |
| 1990 | Houston Astros | NL | MLB | HOU | 44 | 34 | 11 | 4 | 2.21 | 48 | 17 | 3 | 0 | 31 | 14 | 2 | 162.2 | 136 | 42 | 40 | 11 | 31 | 109 | 0 | 2 | 4 | 1.03 | 7.52 | 0.61 | 1.72 | 6.03 | 2.32 | 3.52 |
| 1991 | Boston Red Sox | AL | MLB | BOS | 44 | 35 | 3 | 6 | 5.16 | 12 | 12 | 0 | 0 | 0 | 0 | 0 | 68.0 | 71 | 39 | 39 | 15 | 15 | 42 | 2 | 0 | 4 | 1.26 | 9.40 | 1.99 | 1.99 | 5.56 | 5.16 | 2.80 |
| 1992 | Boston Red Sox | AL | MLB | BOS | 44 | 36 | 9 | 9 | 3.96 | 51 | 15 | 2 | 0 | 36 | 21 | 3 | 161.1 | 159 | 76 | 71 | 11 | 53 | 124 | 5 | 0 | 5 | 1.31 | 8.87 | 0.61 | 2.96 | 6.92 | 4.24 | 2.34 |
| 1993 | Boston Red Sox | AL | MLB | BOS | 44 | 37 | 15 | 11 | 3.26 | 34 | 34 | 2 | 1 | 0 | 0 | 0 | 229.1 | 196 | 93 | 83 | 31 | 49 | 130 | 5 | 1 | 3 | 1.07 | 7.69 | 1.22 | 1.92 | 5.10 | 3.65 | 2.65 |
| 1994 | Boston Red Sox | AL | MLB | BOS | 44 | 38 | 7 | 5 | 6.30 | 13 | 13 | 0 | 0 | 0 | 0 | 0 | 75.2 | 101 | 54 | 53 | 13 | 24 | 54 | 0 | 0 | 1 | 1.65 | 12.01 | 1.55 | 2.85 | 6.42 | 6.42 | 2.25 |
| 1995 | Oklahoma City 89ers | Amer | AAA | TEX | - | 39 | 0 | 0 | 0.00 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3.0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0.33 | 3.00 | 0.00 | 0.00 | 12.00 | 0.00 | 0.00 |
| 1995 | Texas Rangers | AL | MLB | TEX | 44 | 39 | 2 | 2 | 7.15 | 7 | 4 | 0 | 0 | 3 | 0 | 0 | 34.0 | 40 | 27 | 27 | 12 | 7 | 22 | 1 | 0 | 1 | 1.38 | 10.59 | 3.18 | 1.85 | 5.82 | 7.15 | 3.14 |
| 1995 | Toronto Blue Jays | AL | MLB | TOR | 44 | 39 | 1 | 8 | 7.62 | 13 | 11 | 1 | 0 | 2 | 0 | 0 | 65.0 | 91 | 60 | 55 | 13 | 24 | 36 | 1 | 0 | 3 | 1.77 | 12.60 | 1.80 | 3.32 | 4.98 | 8.31 | 1.50 |
| 1996 | Pittsburgh Pirates | NL | MLB | PIT | 44 | 40 | 7 | 9 | 3.02 | 19 | 19 | 0 | 0 | 0 | 0 | 0 | 122.1 | 117 | 48 | 41 | 9 | 16 | 69 | 3 | 3 | 6 | 1.09 | 8.61 | 0.66 | 1.18 | 5.08 | 3.53 | 4.31 |
| 1996 | Houston Astros | NL | MLB | HOU | 43 | 40 | 3 | 2 | 5.95 | 15 | 6 | 0 | 0 | 9 | 1 | 0 | 42.1 | 43 | 31 | 28 | 7 | 11 | 27 | 0 | 0 | 6 | 1.28 | 9.14 | 1.49 | 2.34 | 5.74 | 6.59 | 2.45 |
| 1997 | Chicago White Sox | AL | MLB | CHA | 36,44 | 41 | 4 | 8 | 4.13 | 21 | 17 | 1 | 0 | 4 | 0 | 0 | 113.1 | 130 | 60 | 52 | 21 | 31 | 62 | 1 | 2 | 1 | 1.42 | 10.32 | 1.67 | 2.46 | 4.92 | 4.76 | 2.00 |
| 1997 | San Francisco Giants | NL | MLB | SFN | 43 | 41 | 1 | 3 | 4.91 | 10 | 7 | 0 | 0 | 3 | 0 | 0 | 44.0 | 51 | 26 | 24 | 5 | 14 | 30 | 0 | 0 | 1 | 1.48 | 10.43 | 1.02 | 2.86 | 6.14 | 5.32 | 2.14 |
| 1998 | San Francisco Giants | NL | MLB | SFN | 43 | 42 | 8 | 10 | 5.51 | 33 | 25 | 0 | 0 | 8 | 2 | 0 | 148.2 | 176 | 97 | 91 | 23 | 49 | 81 | 4 | 0 | 3 | 1.51 | 10.65 | 1.39 | 2.97 | 4.90 | 5.87 | 1.65 |
| Tot: | MLB (21 yrs) | MLB | 171 | 182 | 3.84 | 716 | 371 | 53 | 9 | 171 | 345 | 32 | 3016.2 | 2951 | 1431 | 1286 | 321 | 874 | 1942 | 52 | 17 | 81 | 1.27 | 8.80 | 0.96 | 2.61 | 5.79 | 4.27 | 2.22 | ||||
| Tot: | AL (15 yrs) | AL | 108 | 125 | 3.99 | 434 | 239 | 43 | 8 | 117 | 195 | 20 | 1932.2 | 1913 | 961 | 856 | 218 | 594 | 1219 | 37 | 5 | 47 | 1.30 | 8.91 | 1.02 | 2.77 | 5.68 | 4.48 | 2.05 | ||||
| Tot: | NL (8 yrs) | NL | 63 | 57 | 3.57 | 282 | 132 | 10 | 1 | 54 | 150 | 12 | 1084.0 | 1038 | 470 | 430 | 103 | 280 | 723 | 15 | 12 | 34 | 1.22 | 8.62 | 0.86 | 2.32 | 6.00 | 3.90 | 2.58 | ||||
| Tot: | Minors (4 yrs) | Minors | 27 | 19 | 4.01 | 60 | 60 | 14 | 5 | 0 | 0 | 0 | 377.0 | 367 | 196 | 168 | 14 | 197 | 324 | 20 | 1 | 12 | 1.50 | 8.76 | 0.33 | 4.70 | 7.73 | 4.68 | 1.64 | ||||
| Tot: | AA (1 yrs) | AA | 13 | 4 | 2.51 | 23 | 23 | 6 | 4 | 0 | 0 | 0 | 154.0 | 130 | 53 | 43 | 6 | 72 | 129 | 7 | 1 | 0 | 1.31 | 7.60 | 0.35 | 4.21 | 7.54 | 3.10 | 1.79 | ||||
| Tot: | AAA (3 yrs) | AAA | 14 | 15 | 5.04 | 37 | 37 | 8 | 1 | 0 | 0 | 0 | 223.0 | 237 | 143 | 125 | 8 | 125 | 195 | 13 | 0 | 12 | 1.62 | 9.57 | 0.32 | 5.04 | 7.87 | 5.77 | 1.56 | ||||
| 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 |
| 1986 | Houston Astros | NL | MLB | HOU | 44 | 30 | P | 12 | 16 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 2 | 0 | 0 | 0 | 1 | 18 | 0 | 1 | .063 | .063 | .063 | .126 | .000 | .000 | .250 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1987 | Houston Astros | NL | MLB | HOU | 44 | 31 | P | 35 | 66 | 2 | 12 | 2 | 1 | 0 | 4 | 1 | 0 | 2 | 40 | 0 | 1 | 0 | 0 | 0 | 16 | 69 | 3 | 9 | .182 | .206 | .242 | .448 | .106 | .060 | .462 | 2.90 | 57.97 | 20.00 | 0.00 | |
| 1988 | Houston Astros | NL | MLB | HOU | 44 | 32 | P | 44 | 56 | 3 | 4 | 2 | 0 | 1 | 7 | 0 | 0 | 1 | 22 | 0 | 2 | 1 | 0 | 0 | 9 | 60 | 3 | 1 | .071 | .086 | .161 | .247 | .107 | .090 | .088 | 1.67 | 36.67 | 22.00 | 56.00 | |
| 1989 | Houston Astros | NL | MLB | HOU | 44 | 33 | P | 68 | 17 | 1 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 8 | 0 | 0 | 1 | 0 | 0 | 2 | 18 | 0 | 2 | .118 | .111 | .118 | .229 | .000 | .000 | .200 | 0.00 | 44.44 | 0.00 | 0.00 | |
| 1990 | Houston Astros | NL | MLB | HOU | 44 | 34 | P | 52 | 38 | 5 | 5 | 1 | 1 | 0 | 3 | 0 | 0 | 2 | 21 | 0 | 3 | 0 | 0 | 0 | 8 | 43 | 2 | 3 | .132 | .175 | .211 | .386 | .132 | .079 | .294 | 4.65 | 48.84 | 10.50 | 0.00 | |
| 1996 | Pittsburgh Pirates | NL | MLB | PIT | 44 | 40 | P | 19 | 39 | 2 | 8 | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 19 | 0 | 5 | 0 | 0 | 1 | 15 | 44 | 5 | 3 | .205 | .205 | .385 | .590 | .179 | .180 | .368 | 0.00 | 43.18 | 0.00 | 39.00 | |
| 1996 | Houston Astros | NL | MLB | HOU | 43 | 40 | P | 15 | 10 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 8 | 0 | 2 | 0 | 0 | 0 | 1 | 12 | 0 | 1 | .100 | .100 | .100 | .200 | .100 | .000 | .500 | 0.00 | 66.67 | 0.00 | 0.00 | |
| 1997 | Chicago White Sox | AL | MLB | CHA | 36,44 | 41 | P | 21 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 75.00 | 0.00 | 0.00 | |
| 1997 | San Francisco Giants | NL | MLB | SFN | 43 | 41 | P | 10 | 15 | 0 | 2 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 3 | 15 | 1 | 1 | .133 | .133 | .200 | .333 | .067 | .067 | .286 | 0.00 | 53.33 | 0.00 | 0.00 | |
| 1998 | San Francisco Giants | NL | MLB | SFN | 43 | 42 | P | 32 | 45 | 2 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 30 | 1 | 4 | 0 | 0 | 0 | 5 | 51 | 1 | 3 | .089 | .128 | .111 | .239 | .044 | .022 | .267 | 1.96 | 58.82 | 30.00 | 0.00 | |
| Tot: | MLB (8 yrs) | MLB | 308 | 305 | 15 | 39 | 11 | 2 | 2 | 22 | 2 | 0 | 6 | 171 | 1 | 20 | 2 | 0 | 1 | 60 | 334 | 15 | 24 | .128 | .146 | .197 | .343 | .095 | .069 | .276 | 1.80 | 51.20 | 28.50 | 152.50 | ||||||
| Tot: | AL (1 yrs) | AL | 21 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 75.00 | |||||||||
| Tot: | NL (8 yrs) | NL | 287 | 302 | 15 | 39 | 11 | 2 | 2 | 22 | 2 | 0 | 6 | 168 | 1 | 19 | 2 | 0 | 1 | 60 | 330 | 15 | 24 | .129 | .148 | .199 | .347 | .096 | .070 | .276 | 1.82 | 50.91 | 28.00 | 151.00 | ||||||
| Tot: | Minors (1 yrs) | Minors | 24 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Tot: | AA (1 yrs) | AA | 24 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 59 | 68 | 55 | 74 | 55 | 77 | .485 |