The only American football team to go a whole season undefeated, including the Super Bowl, is the Miami Dolphins
. In the 1972 season, the Dolphins had a perfect regular season record of 14-0 and went on to win all three postseason games, finishing with a record of 17-0
. This makes them the only team in NFL history to have an undefeated and untied season
. The Dolphins' perfect season culminated in a victory in Super Bowl VII, where they defeated the Washington Football Team
. No other team has been able to replicate this feat, although the 2007 New England Patriots came close with an 18-0 record before losing in the Super Bowl
. The Miami Dolphins' undefeated season remains a significant achievement in the history of American football.