| Date | Team | Opp | Result | Pos | PA | AB | R | H | TB | 2B | 3B | HR | RBI | SH | SF | HBP | BB | IBB | SO | SB | CS | GIDP | PO | A | E | DP | AVG | OBP | SLG | OPS | wOBA | wRC+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | ||||||||||||||||||||||||||||||||
| Season Total | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | 0.000 | 0.000 | 0.000 | 0.000 | — | — |
| Date | Team | Opp | Result | Dec | GS | IP | AB | BF | H | R | ER | HR | BB | IBB | SO | HBP | SH | SF | WP | BK | ERA | WHIP | K/9 | BB/9 | FIP | ERA+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | ||||||||||||||||||||||||||
| Season Total 3-3 | 3 | 40.0 | 30 | 29 | 23 | 0 | 40 | 41 | 5.17 | 1.75 | 9.22 | 9.00 | — | 101 |
| Year | Level | Team | Org | G | GS | IP | H | R | ER | BB | SO | HR | W | L | SV | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | MLB | California | California | 30 | 29 | 189.2 | 189 | 105 | 99 | 64 | 102 | 23 | 12 | 12 | 0 | 4.70 | 1.33 | 4.84 |
| 1986 | MLB | California | California | 34 | 33 | 246.1 | 207 | 99 | 92 | 92 | 202 | 19 | 17 | 10 | 0 | 3.36 | 1.21 | 7.38 |
| 1987 | MLB | California | California | 14 | 13 | 74.2 | 84 | 52 | 47 | 34 | 56 | 14 | 4 | 6 | 0 | 5.67 | 1.58 | 6.75 |
| 1988 | MLB | California | California | 23 | 23 | 146.1 | 155 | 78 | 70 | 61 | 98 | 9 | 8 | 6 | 0 | 4.31 | 1.48 | 6.03 |
| 1989 | MLB | California | California | 32 | 32 | 212.0 | 202 | 73 | 69 | 59 | 107 | 16 | 15 | 10 | 0 | 2.93 | 1.23 | 4.54 |
| 1990 | MLB | California | California | 29 | 29 | 174.1 | 161 | 77 | 63 | 72 | 78 | 9 | 12 | 11 | 0 | 3.25 | 1.34 | 4.03 |
| 1991 | MLB | California | California | 30 | 30 | 177.2 | 193 | 93 | 84 | 66 | 71 | 19 | 10 | 19 | 0 | 4.26 | 1.46 | 3.60 |
| 1992 | MLB | Chicago | Chicago | 34 | 34 | 209.0 | 193 | 116 | 97 | 95 | 109 | 11 | 12 | 13 | 0 | 4.18 | 1.38 | 4.69 |
| 1993 | MLB | Chicago | Chicago | 30 | 14 | 113.2 | 144 | 71 | 66 | 36 | 65 | 12 | 4 | 8 | 2 | 5.23 | 1.58 | 5.15 |
| 1994 | MLB | Chicago | Chicago | 40 | 0 | 52.2 | 51 | 22 | 20 | 22 | 37 | 6 | 1 | 4 | 3 | 3.42 | 1.39 | 6.32 |
| 1995 | MLB | Chicago | Chicago | 55 | 1 | 81.0 | 97 | 50 | 44 | 33 | 50 | 10 | 6 | 4 | 2 | 4.89 | 1.60 | 5.56 |
| 1996 | MLB | Chicago | Chicago | 29 | 4 | 51.2 | 72 | 41 | 40 | 31 | 28 | 6 | 5 | 5 | 0 | 6.97 | 1.99 | 4.88 |
| 1985–1996 | MLB | Career (12 yrs) | 380 | 242 | 1729.0 | 1748 | 877 | 791 | 665 | 1003 | 154 | 106 | 108 | 7 | 4.12 | 1.40 | 5.22 |