Detroit Lions stun Arizona Cardinals, 30–12

The Lions closed as 13-point underdogs and won outright. The betting market gave them a 16% chance.

It was the biggest of 3 NFL upsets in 2021 Week 15, and the 4th-biggest of the 2021 season. Detroit Lions pulled off 2 other upsets in 2021.

Other NFL upsets in 2021 Week 15

1. New Orleans Saints 9, Tampa Bay Buccaneers 0

   11.5-point underdog19% to winRecap
   Upset size11.5
2. Houston Texans 30, Jacksonville Jaguars 16

   6-point underdog30% to winRecap
   Upset size6

Detroit Lions’ other 2021 upsets

1. Detroit Lions 29, Minnesota Vikings 27

   Week 137-point underdog27% to winRecap
   Upset size7
2. Detroit Lions 37, Green Bay Packers 30

   Week 184-point underdog36% to winRecap
   Upset size4

More: Detroit Lions upsets · Arizona Cardinals upsets · all Week 15 upsets · how upset size works