Detroit Lions beat St. Louis Rams, 31–27

The Lions closed as 4-point underdogs and won outright.

It was the 2nd-biggest of 3 NFL upsets in 1999 Week 9, and the 38th-biggest of the 1999 season. Detroit Lions pulled off 4 other upsets in 1999.

Other NFL upsets in 1999 Week 9

1. Chicago Bears 14, Green Bay Packers 13

   9-point underdogRecap
   Upset size9
2. Buffalo Bills 34, Washington Commanders 17

   4-point underdogRecap
   Upset size4

Detroit Lions’ other 1999 upsets

1. Detroit Lions 28, Seattle Seahawks 20

   Week 19.5-point underdogRecap
   Upset size9.5
2. Detroit Lions 23, Green Bay Packers 15

   Week 26.5-point underdogRecap
   Upset size6.5
3. Detroit Lions 24, Carolina Panthers 9

   Week 74.5-point underdogRecap
   Upset size4.5
4. Detroit Lions 25, Minnesota Vikings 23

   Week 63.5-point underdogRecap
   Upset size3.5

More: Detroit Lions upsets · St. Louis Rams upsets · all Week 9 upsets · how upset size works