| 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+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | ||||||||||||||||||||||||||
| Season Total 2-5 | 0 | 42.0 | 44 | 41 | 27 | 0 | 32 | 31 | 5.79 | 1.81 | 6.64 | 6.86 | — | 67 |
| Year | Level | Team | Org | G | PA | AB | R | H | TB | 2B | 3B | HR | RBI | BB | SO | SB | CS | HBP | SF | SAC | GIDP | AVG | OBP | SLG | OPS | BABIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2002 | MLB | Chicago White Sox | Chicago White Sox | 33 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | — |
| 2003 | MLB | Chicago White Sox | Chicago White Sox | 20 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | — |
| 2002–2003 | MLB | Career (2 yrs) | 53 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0.000 | — |
| Year | Level | Team | Org | G | GS | IP | H | R | ER | BB | SO | HR | W | L | SV | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000 | AA | Birmingham | Chicago White Sox | 7 | 7 | 43.1 | 28 | 15 | 12 | 24 | 31 | 3 | 2 | 4 | 0 | 2.49 | 1.20 | 6.44 |
| 2001 | AA | Birmingham | Chicago White Sox | 20 | 20 | 134.0 | 112 | 54 | 42 | 41 | 128 | 6 | 7 | 7 | 0 | 2.82 | 1.14 | 8.60 |
| 2001 | MLB | Chicago White Sox | Chicago White Sox | 13 | 12 | 66.1 | 78 | 45 | 42 | 39 | 36 | 12 | 5 | 3 | 0 | 5.70 | 1.76 | 4.88 |
| 2002 | MLB | Chicago White Sox | Chicago White Sox | 33 | 33 | 196.1 | 200 | 124 | 113 | 71 | 136 | 32 | 14 | 12 | 0 | 5.18 | 1.38 | 6.23 |
| 2003 | MLB | Chicago White Sox | Chicago White Sox | 20 | 15 | 86.1 | 91 | 63 | 59 | 46 | 47 | 16 | 1 | 7 | 1 | 6.15 | 1.59 | 4.90 |
| 2004 | MLB | Chicago White Sox | Chicago White Sox | 4 | 4 | 17.2 | 24 | 17 | 16 | 11 | 6 | 5 | 0 | 4 | 0 | 8.15 | 1.98 | 3.06 |
| 2001–2004 | MLB | Career (4 yrs) | 70 | 64 | 366.2 | 393 | 249 | 230 | 167 | 225 | 65 | 20 | 26 | 1 | 5.65 | 1.53 | 5.52 | |
| 2000–2001 | AA | Career (2 yrs) | 27 | 27 | 177.1 | 140 | 69 | 54 | 65 | 159 | 9 | 9 | 11 | 0 | 2.74 | 1.16 | 8.07 |