| Year | Tm | G | W | L | Sv | IP | K | ERA | WHIP | R$ | T15 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | BAL | 12 | 4 | 5 | 0 | 87 | 52 | 2.87 | 1.12 | $6 | |
| 1992 | BAL | 32 | 18 | 5 | 0 | 241 | 130 | 2.54 | 1.08 | $25 | T15 |
| 1993 | BAL | 25 | 14 | 6 | 0 | 167 | 117 | 4.46 | 1.24 | $11 | |
| 1994 | BAL | 24 | 16 | 5 | 0 | 176 | 99 | 3.06 | 1.16 | $23 | T15 |
| 1995 | BAL | 32 | 19 | 9 | 0 | 221 | 158 | 3.29 | 1.07 | $29 | T15 |
| 1996 | BAL | 36 | 19 | 11 | 0 | 243 | 204 | 4.81 | 1.37 | $15 | |
| 1997 | BAL | 33 | 15 | 8 | 0 | 224 | 218 | 3.20 | 1.12 | $24 | T15 |
| 1998 | BAL | 29 | 13 | 10 | 0 | 206 | 175 | 3.49 | 1.12 | $21 | |
| 1999 | BAL | 31 | 18 | 7 | 0 | 203 | 172 | 3.50 | 1.27 | $22 | T15 |
| 2000 | BAL | 34 | 11 | 15 | 0 | 237 | 210 | 3.79 | 1.19 | $24 | T15 |
| 2001 | NYY | 34 | 17 | 11 | 0 | 228 | 214 | 3.15 | 1.07 | $30 | T15 |
| 2002 | NYY | 33 | 18 | 10 | 0 | 215 | 182 | 4.05 | 1.19 | $18 | |
| 2003 | NYY | 31 | 17 | 8 | 0 | 214 | 195 | 3.40 | 1.08 | $24 | T15 |
| 2004 | NYY | 27 | 12 | 9 | 0 | 164 | 132 | 4.59 | 1.32 | $9 | |
| 2005 | NYY | 30 | 13 | 8 | 0 | 179 | 142 | 4.41 | 1.37 | $8 | |
| 2006 | NYY | 32 | 15 | 7 | 0 | 197 | 172 | 3.51 | 1.11 | $24 | T15 |
| 2007 | NYY | 28 | 11 | 10 | 0 | 152 | 91 | 5.15 | 1.47 | $2 | |
| 2008 | NYY | 34 | 20 | 9 | 0 | 200 | 150 | 3.37 | 1.22 | $21 |