San Francisco 49ers upset Atlanta Falcons, 17–16

The 49ers closed as 9.5-point underdogs and won outright. The betting market gave them a 21% chance.

All 2015 NFL Week 9 upsets, biggest first

An NFL upset is an underdog getting 3.5 or more points on the closing line winning outright. Upset size is the points it overcame. How it’s scored

1. San Francisco 49ers 17, Atlanta Falcons 16

   9.5-point underdog21% to winRecap
   Upset size9.5
2. Tennessee Titans 34, New Orleans Saints 28

   7-point underdog27% to winOTRecap
   Upset size7
3. Indianapolis Colts 27, Denver Broncos 24

   3.5-point underdog39% to winRecap
   Upset size3.5
4. Chicago Bears 22, San Diego Chargers 19

   3.5-point underdog37% to winRecap
   Upset size3.5