This is a season-by-season breakdown of the last undefeated National Football League (NFL) team. This list indicates the teams who won the most games in a season before suffering their first loss. [1]
The last team in a new season to lose a game has won the Super Bowl twelve times. Before the Super Bowl era, the last undefeated team won fourteen Championship games, four of which were in the AFL. Before playoffs began in the 1933 season, the last undefeated team earned the NFL championship seven times by having the highest winning percentage (ties were not included in calculation). The last team with an unblemished record has made 29 Super Bowl and 26 Championship game appearances.
The Chicago Bears have been the last team undefeated 17 times (the last time was during the 2010 season), while the next team, the Los Angeles Rams, have been the last team beaten 12 times as of the 2018 season. The New York Giants hold the mark for beating the last undefeated team the most times. They have accomplished this 11 times; the last time it happened was in 2010.
When the teams are sorted, all the names of a franchise are grouped together:
Perfect season | |
Undefeated season | |
Perfect regular season, lost in the post-season | |
Subsequently won Championship/Super Bowl |
DNQ | Did not qualify |
^† Note 1: The NFL did not have playoff games until the 1933 season.
^* Note 2: Buffalo and Chicago both had 9–1 records (ties not counted in standings then). Chicago was awarded the championship when the league instituted a new tiebreaker rule at the end of the season.
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