| Rk | Day | Date | Tm | Opp | Tm | Opp | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sun | September 7, 2003 | W | Kansas City Chiefs | San Diego Chargers | 27 | 14 | box | |
| 2 | Sun | September 14, 2003 | W | Kansas City Chiefs | Pittsburgh Steelers | 41 | 20 | box | |
| 3 | Sun | September 21, 2003 | W | Kansas City Chiefs | @ | Houston Texans | 42 | 14 | box |
| 4 | Sun | September 28, 2003 | W | Kansas City Chiefs | @ | Baltimore Ravens | 17 | 10 | box |
| 5 | Sun | October 5, 2003 | W | Kansas City Chiefs | Denver Broncos | 24 | 23 | box | |
| 6 | Sun | October 12, 2003 | W | Kansas City Chiefs | @ | Green Bay Packers | 40 | 34 | box |
| 7 | Mon | October 20, 2003 | W | Kansas City Chiefs | @ | Oakland Raiders | 17 | 10 | box |
| 8 | Sun | October 26, 2003 | W | Kansas City Chiefs | Buffalo Bills | 38 | 5 | box | |
| 9 | Sun | November 9, 2003 | W | Kansas City Chiefs | Cleveland Browns | 41 | 20 | box | |
| 10 | Sun | November 16, 2003 | L | Kansas City Chiefs | @ | Cincinnati Bengals | 19 | 24 | box |
| 11 | Sun | November 23, 2003 | W | Kansas City Chiefs | Oakland Raiders | 27 | 24 | box | |
| 12 | Sun | November 30, 2003 | W | Kansas City Chiefs | @ | San Diego Chargers | 28 | 24 | box |
| 13 | Sun | December 7, 2003 | L | Kansas City Chiefs | @ | Denver Broncos | 27 | 45 | box |
| 14 | Sun | December 14, 2003 | W | Kansas City Chiefs | Detroit Lions | 45 | 17 | box | |
| 15 | Sat | December 20, 2003 | L | Kansas City Chiefs | @ | Minnesota Vikings | 20 | 45 | box |
| 16 | Sun | December 28, 2003 | W | Kansas City Chiefs | Chicago Bears | 31 | 3 | box | |
| 17 | Sun | January 11, 2004 | L | Kansas City Chiefs | Indianapolis Colts | 31 | 38 | box |