| Rk | Day | Date | Tm | Opp | Tm | Opp | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sun | September 7, 2003 | W | Detroit Lions | Arizona Cardinals | 42 | 24 | box | |
| 2 | Sun | September 14, 2003 | L | Detroit Lions | @ | Green Bay Packers | 6 | 31 | box |
| 3 | Sun | September 21, 2003 | L | Detroit Lions | Minnesota Vikings | 13 | 23 | box | |
| 4 | Sun | September 28, 2003 | L | Detroit Lions | @ | Denver Broncos | 16 | 20 | box |
| 5 | Sun | October 5, 2003 | L | Detroit Lions | @ | San Francisco 49ers | 17 | 24 | box |
| 6 | Sun | October 19, 2003 | L | Detroit Lions | Dallas Cowboys | 7 | 38 | box | |
| 7 | Sun | October 26, 2003 | L | Detroit Lions | @ | Chicago Bears | 16 | 24 | box |
| 8 | Sun | November 2, 2003 | W | Detroit Lions | Oakland Raiders | 23 | 13 | box | |
| 9 | Sun | November 9, 2003 | W | Detroit Lions | Chicago Bears | 12 | 10 | box | |
| 10 | Sun | November 16, 2003 | L | Detroit Lions | @ | Seattle Seahawks | 14 | 35 | box |
| 11 | Sun | November 23, 2003 | L | Detroit Lions | @ | Minnesota Vikings | 14 | 24 | box |
| 12 | Thu | November 27, 2003 | W | Detroit Lions | Green Bay Packers | 22 | 14 | box | |
| 13 | Sun | December 7, 2003 | L | Detroit Lions | San Diego Chargers | 7 | 14 | box | |
| 14 | Sun | December 14, 2003 | L | Detroit Lions | @ | Kansas City Chiefs | 17 | 45 | box |
| 15 | Sun | December 21, 2003 | L | Detroit Lions | @ | Carolina Panthers | 14 | 20 | box |
| 16 | Sun | December 28, 2003 | W | Detroit Lions | St. Louis Rams | 30 | 20 | box |