A perfect season is a sports season including any requisite playoff portion, in which a team remains undefeated and untied. The feat is extremely rare at the professional level of any team sport, and has occurred more commonly at the collegiate level in the United States. A perfect regular season (known by other names outside the United States) is a season excluding any playoffs, where a team remains undefeated and untied; it is less rare than a complete perfect season but still exceptional.
Here are a list of teams that either won every game including the playoffs and championship — as well as those that just won every regular season game:
- 2020 Alabama (NCAA football) including championship
- 2019 LSU (NCAA football) including championship
- 2018 Clemson (NCAA football) including championship
- 2017 UCF (NCAA football)
- 2016 Connecticut Huskies (NCAA women’s basketball) including championship
- 2014 Wichita State Shockers (NCAA men’s basketball) regular season only *
- 2014 Connecticut Huskines (NCAA women’s basketball) including championship
- 2013 Florida State Seminoles (NCAA football) including championship
- 2012-13 Minnesota Golden Gophers (NCAA women’s ice hockey) including championship
- 2012 Baylor Lady Bears (NCAA women’s basketball) including championship
- 2010 Nebraska Cornhuskers (NCAA women’s basketball) regular season only
- 2010 Connecticut Huskies (NCAA women’s basketball) including championship
- 2010 Auburn Tigers (NCAA football) including championship
- 2009 Connecticut Huskies (NCAA women’s basketball) including championship
- 2009 Boise State Broncos (NCAA football) including championship
- 2009 Alabama Tide (NCAA football) including championship
- 2007 New England Patriots (NFL) regular season only
- 2007 Duke Blue Devils (NCAA women’s basketball) regular season only
- 2004 Saint Joseph’s Hawks (NCAA men’s basketball) regular season only
- 2003 Connecticut Huskies (NCAA women’s basketball) regular season only
- 2002 The Ohio State Buckeyes (NCAA football) including championship
- 2002 Connecticut Huskies (NCAA women’s basketball) including championship
- 1998 Tennessee Lady Vols (NCAA women’s basketball) including championship
- 1998 Liberty Lady Flames (NCAA women’s basketball) regular season only
- 1997 Connecticut Huskies (NCAA women’s basketball) regular season only
- 1995 Connecticut Huskies (NCAA women’s basketball) including championship
- 1992 Vermont Catamounts (NCAA women’s basketball) regular season only
- 1991 UNLV Runnin’ Rebels (NCAA men’s basketball) regular season only
- 1990 Louisiana Tech Lady Techsters (NCAA women’s basketball) regular season only
- 1986 Texas Longhorns (NCAA women’s basketball) including championship
- 1983–84 Bemidji State Beavers (NCAA men’s ice hockey) including championship
- 1983 Oral Roberts Lady Titans (NCAA women’s basketball) regular season only
- 1981 Louisiana Tech Lady Techsters (NCAA women’s basketball) including championship
- 1979 Indiana State Sycamores (NCAA men’s basketball) regular season only
- 1979 Alcorn State Braves (NCAA men’s basketball) regular season only
- 1976 Rutgers Scarlet Knights (NCAA men’s basketball) regular season only
- 1976 Indiana Hoosiers (NCAA men’s basketball) including championship
- 1975 Indiana Hoosiers (NCAA men’s basketball) regular season only
- 1975 Delta State Lady Statesmen (NCAA women’s basketball) including championship
- 1973 UCLA Bruins (NCAA men’s basketball) including championship
- 1973 NC State Wolfpack (NCAA men’s basketball) regular season only
- 1973 Immaculata Mighty Macs (NCAA women’s basketball) including championship
- 1972 UCLA Bruins (NCAA men’s basketball) including championship
- 1972 Miami Dolphins (NFL) including championship
- 1971 Marquette Warriors (NCAA men’s basketball) regular season only
- 1969–70 Cornell Big Red (NCAA men’s ice hockey) including championship
- 1968 St. Bonaventure Bonnies (NCAA men’s basketball) regular season only
- 1968 Houston Cougars (NCAA men’s basketball) regular season only
- 1967 UCLA Bruins (NCAA men’s basketball) including championship
- 1964 UCLA Bruins (NCAA men’s basketball) including championship
- 1961 Ohio State Buckeyes (NCAA men’s basketball) regular season only
- 1957 North Carolina Tar Heels (NCAA men’s basketball) including championship
- 1956 San Francisco Dons (NCAA men’s basketball) including championship
- 1954 Kentucky Wildcats (NCAA men’s basketball) regular season only
- 1951 Columbia Lions (NCAA men’s basketball) regular season only
- 1944 Army Cadets (NCAA men’s basketball) regular season only
- 1942 Chicago Bears (NFL) regular season only
- 1941 Seton Hall Pirates (NCAA men’s basketball) regular season only
- 1940 Seton Hall Pirates (NCAA men’s basketball) regular season only
- 1939 Loyola Ramblers (NCAA men’s basketball) regular season only
- 1939 LIU Blackbirds (NCAA men’s basketball) including championship
- 1934 Chicago Bears (NFL) regular season only
- 1929 Green Bay Packers (Pro football) regular season only
- 1923 Canton Bulldogs (Pro football) regular season only
- 1922 Canton Bulldogs (Pro football) regular season only
- 1920 Akron Pros (Pro football) regular season only
