San Francisco 49ers stun Denver Broncos, 26–23

The 49ers closed as 10.5-point underdogs and won outright in overtime. The betting market gave them a 18% chance.

It was the 2nd-biggest of 4 NFL upsets in 2006 Week 17, and the 6th-biggest of the 2006 season. San Francisco 49ers pulled off 3 other upsets in 2006.

Other NFL upsets in 2006 Week 17

1. Detroit Lions 39, Dallas Cowboys 31

   13.5-point underdog11% to winRecap
   Upset size13.5
2. Pittsburgh Steelers 23, Cincinnati Bengals 17

   6-point underdog31% to winOTRecap
   Upset size6
3. New England Patriots 40, Tennessee Titans 23

   3.5-point underdog37% to winRecap
   Upset size3.5

San Francisco 49ers’ other 2006 upsets

1. San Francisco 49ers 24, Seattle Seahawks 14

   Week 1510-point underdog18% to winRecap
   Upset size10
2. San Francisco 49ers 19, Detroit Lions 13

   Week 106.5-point underdog28% to winRecap
   Upset size6.5
3. San Francisco 49ers 9, Minnesota Vikings 3

   Week 94-point underdog35% to winRecap
   Upset size4

More: San Francisco 49ers upsets · Denver Broncos upsets · all Week 17 upsets · how upset size works