In 1970, the Chiefs won only seven games in their first season in the NFL and missed the playoffs. The following season, the Chiefs tallied a 10–3–1 record and won the AFC West Division. Head coach Hank Stram considered his 1971 Chiefs team as his best, but they failed to capture their championship dominance from 1969. Most of the pieces of the team which won Super Bowl IV two years earlier were still in place for the 1971 season. The Chiefs tied with the Miami Dolphins for the best record in the AFC, and both teams met in a Christmas Day playoff game which the Chiefs lost 27–24 in double overtime. The Dolphins outlasted the Chiefs with a 37-yard field goal. The game surpassed the 1962 AFL Championship Game as the longest ever at 82 minutes and 40 seconds. The game was also the final football game at Kansas City's Municipal Stadium.
