Regular season and playoffs
| Year | Team | Games | Att | Cmp | Cmp% | Pass Yds | Pass TD | INT | Sacks | Y/A | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1994 | SF | 13 | 55 | 37 | 67.3 | 440 | 2 | 1 | 4 | 8.0 | 96.0 |
| 1995 | SF | 16 | 183 | 127 | 69.4 | 1469 | 8 | 5 | 6 | 8.0 | 96.6 |
| 1996 | SF | 17 | 233 | 141 | 60.5 | 1361 | 9 | 13 | 6 | 5.8 | 66.5 |
| 1997 | KC | 11 | 351 | 203 | 57.8 | 2203 | 12 | 6 | 23 | 6.3 | 80.7 |
| 1998 | KC | 8 | 188 | 98 | 52.1 | 1142 | 5 | 12 | 11 | 6.1 | 53.1 |
| 1999 | KC | 16 | 499 | 294 | 58.9 | 3389 | 22 | 15 | 26 | 6.8 | 81.7 |
| 2000 | KC | 14 | 514 | 306 | 59.5 | 3934 | 23 | 13 | 27 | 7.7 | 88.0 |
| 2001 | BAL | 16 | 522 | 295 | 56.5 | 3319 | 16 | 21 | 32 | 6.4 | 69.1 |