List of last undefeated NFL teams by season (original) (raw)

This is a season-by-season breakdown of the last undefeated National Football League team. This list indicates the teams who won the most games in a season before suffering their first loss. 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. The last team with an unblemished record has made 25 Super Bowl and 26 Championship game appearances.