Buffalo Bills beat Washington Commanders, 34–17

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

It was the 3rd-biggest of 3 NFL upsets in 1999 Week 9, and the 37th-biggest of the 1999 season. Buffalo Bills pulled off 1 other upset in 1999.

Other NFL upsets in 1999 Week 9

1. Chicago Bears 14, Green Bay Packers 13

   9-point underdogRecap
   Upset size9
2. Detroit Lions 31, St. Louis Rams 27

   4-point underdogRecap
   Upset size4

Buffalo Bills’ other 1999 upsets

1. Buffalo Bills 23, Miami Dolphins 18

   Week 44.5-point underdogRecap
   Upset size4.5

More: Buffalo Bills upsets · Washington Commanders upsets · all Week 9 upsets · how upset size works