Trivia: Which NFL team became the only undefeated team to win the Super Bowl?
New England Patriots
Correct Answer: Miami Dolphins
So why is this answer correct? : The Miami Dolphins are, to this day, the only NFL team to complete a football season undefeated. They joined the NFL three years prior, but in 1973, they won each of their games, including the Super Bowl. Other teams have come close to their record, but of those teams, each has at least one tied game on their record.