Kansas City Chiefs beat Oakland Raiders, 37–34

The Chiefs closed as 3.5-point underdogs and won outright.

It was the 4th-biggest of 4 NFL upsets in 1999 Week 12, and the 43rd-biggest of the 1999 season. Kansas City Chiefs pulled off 2 other upsets in 1999.

Other NFL upsets in 1999 Week 12

1. Cincinnati Bengals 27, Pittsburgh Steelers 20

   11-point underdogRecap
   Upset size11
2. Tampa Bay Buccaneers 16, Seattle Seahawks 3

   6-point underdogRecap
   Upset size6
3. Arizona Cardinals 34, New York Giants 24

   4.5-point underdogRecap
   Upset size4.5

Kansas City Chiefs’ other 1999 upsets

1. Kansas City Chiefs 16, Denver Broncos 10

   Week 133.5-point underdogRecap
   Upset size3.5
2. Kansas City Chiefs 26, Denver Broncos 10

   Week 23.5-point underdogRecap
   Upset size3.5

More: Kansas City Chiefs upsets · Oakland Raiders upsets · all Week 12 upsets · how upset size works