Has any NFL team gone undefeated in the playoffs?
In one sense, it happens most years: every Super Bowl champion goes undefeated in the playoffs, because you cannot lose a game and still win the title. The feat people really mean — going undefeated across the entire season, regular games and playoffs together — has happened exactly once. The 1972 Miami Dolphins finished 17-0, and no team has matched them since.
Undefeated in the playoffs vs a perfect season
The two are not the same. Winning all your playoff games is the price of any championship — dozens of teams have done it. Winning every game a season has, start to finish, is the perfect season, and it is one of the hardest things in sports. In the modern NFL that full run reads 20-0: seventeen regular-season wins and three in the playoffs, with no loss anywhere. Read what 20-0 means in football for the math.
The teams that ran the table — until they didn’t
Plenty of teams carried an unbeaten record into January and then lost the one game that mattered. The 2007 New England Patriots went 16-0, reached 18-0, and lost the Super Bowl to finish 18-1. Long before that, the 1934 Bears went 13-0 and the 1942 Bears went 11-0 in the regular season, only to lose the NFL Championship Game. Each proves the same point: the playoff run is where perfect seasons go to die.
Only one got through
The 1972 Dolphins are the only NFL team to go undefeated through the regular season and the playoffs to a championship — 14-0, then three playoff wins, then Super Bowl VII, a clean 17-0. That is why a perfect postseason on top of a perfect regular season is the sport’s rarest feat: it has one owner in more than a hundred years of football.
Try to run the whole table
The game here puts you in that seat. Draft an all-time roster from real franchise history, simulate the whole season, and see whether your team can win every game — regular season and playoffs — for a perfect 20-0. Build an undefeated NFL team, play the cross-sport perfect season game, or read how to build a perfect roster. One weak seat and the run ends in the playoffs — same as it does in real life.
Questions people actually ask
Has any NFL team gone undefeated in the playoffs?
Yes — every Super Bowl champion does, because you have to win every playoff game to lift the trophy. The rarer feat is going undefeated across the ENTIRE season, regular season and playoffs together. That has happened exactly once: the 1972 Miami Dolphins finished 17-0.
Which teams went undefeated in the regular season but lost in the playoffs?
The most famous is the 2007 New England Patriots, who went 16-0 and then lost the Super Bowl to finish 18-1. Before the Super Bowl era, the 1934 Bears (13-0) and 1942 Bears (11-0) each ran the regular-season table and then lost the NFL Championship Game.
Why is a perfect playoff run so hard?
The math is unforgiving: one loss ends it. In the regular season a great team can drop a game and still make the playoffs, but a perfect season allows zero — every regular-season game AND every playoff round, all won. A modern champion who never loses finishes 20-0.
Can you go undefeated through the playoffs in the game?
That is the whole challenge. You draft an all-time roster, the season simulates, and one weak seat can cost you a game and the perfect run. About one board in twenty makes it all the way to a perfect 20-0.