San Francisco 49ers stun Tampa Bay Buccaneers, 15–10

The 49ers closed as 11.5-point underdogs and won outright.

It was the biggest of 1 NFL upset in 2005 Week 8, and the 4th-biggest of the 2005 season. San Francisco 49ers pulled off 2 other upsets in 2005.

San Francisco 49ers’ other 2005 upsets

1. San Francisco 49ers 24, St. Louis Rams 20

   Week 169-point underdogRecap
   Upset size9
2. San Francisco 49ers 28, St. Louis Rams 25

   Week 14.5-point underdogRecap
   Upset size4.5

More: San Francisco 49ers upsets · Tampa Bay Buccaneers upsets · all Week 8 upsets · how upset size works