What teams have gone defeated in the regular season in the NFL?

Answer 1

As of the 2008 season, that has occurred twice. In Super Bowl VII, the Miami Dolphins were undefeated and played the Washington Redskins. The Dolphins won, 14-7, to complete their undefeated season (17-0). In Super Bowl XLII, the New England Patriots were undefeated and played the New York Giants. The Patriots lost, 17-14, and finished the season at 18-1.

Answer 2

Yes. Several times. Here's a list of winless teams in pro football. I included some teams who didnt lose every game, but none the less, didn't register a single victory. NFL Franchises

Chicago Cardinals (Arizona Cardinals)

1943 0-10 Dallas Cowboys

1960 0-11-1 Detroit Lions

1942 0-11 Indianapolis Colts (Baltimore Colts)

1982 0-8-1 in a strike shortened season Tampa Bay Bucanneers

1976 0-14

Historical NFL/APFA Franchises - noted that these teams did not all play a tandardized schedule. The number of games varied year to year, and club by club. Brookyln Tigers fka Brooklyn Dodgers & the Dayton Triangles

1944 0-10

1929 0-6

1928 0-6

1925 0-7-1 Buffalo All Americans f/k/a Buffalo Rangers & Bisons

1927 0-5 Chicago-Pittsburgh Carpets (a combined Pittsburgh Steelers & Chicago Cardinals roster)

1944 0-10 Cincinnatti Reds

1934 0-8 Colombus Tigers f/k/a Colombus Panhandles

1925 0-9

1022 0-8

1920 0-5 Newark Tornadoes f/k/a Orange Tornadoes, Duluth Eskimos & Duluth Kellys

1925 0-3 Evansville Crimson Giants

1922 0-3 Hammond Pros

1926 0-4

1922 0-5-1

1920 0-3 Kenosha Maroons f/k/a Toledo Maroons

1924 0-4-1 Louisville Brecks

1923 0-3

1921 0-2 Louisville Colonels

1926 0-4 Milwakee Badgers

1925 0-6 Minneapolis Marines

1924 0-6 Muncie Flyers

1921 0-2

1920 0-1 New York Brickley's Giants

1921 0-2 Rochester Jeffersons

1925 0-6-1

1924 0-7

1923 0-4

1922 0-4-1

1920 0-1 Tonawanda Kardex

1921 0-1

Answer 3

The Miami Dolphins and and the New England Patrots have gone undeafted in a regular season.

Answer 4

The 1972 Miami Dolphins entered the Super Bowl 16-0 and won. The 2007 New England Patriots entered the Super Bowl 18-0, but lost.