1920–21 Swiss Serie A, 1920–21 Prima Categoria, 1920–21 in English football, 1920–21 El Mokhtalat Club season, 1920–21 Chelsea F.C. season, 1920–21 in Swedish football, 1920–21 Divizia A, 1920–21 Irish League, 1920–21 Division 2 Sydsvenska Serien, 1920–21 Nemzeti Bajnokság I, 1920–21 Belgian First Division, 1920–21 Scottish Football League, 1920–21 Missouri Tigers men's basketball team, 1920–21 Kansas Jayhawks men's basketball team, 1920–21 Football League, 1920–21 Colgate men's basketball team, 1920–21 Rangers F.C. season, 1920–21 Brentford F.C. season, 1920–21 Manchester United F.C. season, 1920–21 Montreal Canadiens season, 1920–21 Kentucky Wildcats men's basketball team, 1920–21 St. Francis Terriers men's basketball team, 1920–21 Georgetown Hoyas men's basketball team, 1920–21 Arsenal F.C. season, 1920–21 Ottawa Senators season, 1920–21 Cincinnati Bearcats men's basketball team, 1920–21 Stoke F.C. season, 1920–21 Newport County A.F.C. season, 1920–21 Primera Fuerza season, 1920–21 NCAA season, 1920–21 Navy Midshipmen men's basketball team, 1920–21 Svenska Serien, 1920–21 Austrian First Class, 1920–21 Malmö FF season, 1920–21 Burnley F.C. season, 1920–21 Drexel Blue and Gold men's basketball team, 1920–21 Buffalo Bulls men's basketball team, 1920–21 Blackpool F.C. season, 1920–21 Aston Villa F.C. season, 1920–21 FA Cup, 1920–21 Loyola Ramblers men's basketball team

1920–21 in Scottish football, 1920–21 Bates men's ice hockey season, 1920–21 NHL season, 1920–21 PCHA season, 1920–21 Rochdale A.F.C. season, 1920–21 Maltese Premier League, 1920–21 Toronto St. Patricks season, 1920–21 Hamilton Tigers season, 1920–21 in Mandatory Palestine football, 1920–21 Southampton F.C. season, 1920–21 Scottish Cup, 1920–21 Trinity Blue and White men's basketball team, 1920–21 Niagara Purple Eagles men's basketball team, 1920–21 Amherst men's ice hockey season, 1920–21 in Belgian football, International cricket in 1920–21, 1920–21 Birmingham F.C. season, 1920–21 Gillingham F.C. season, 1920–21 Manchester City F.C. season, 1920–21 William & Mary Indians men's basketball team, 1920–21 Penn Quakers men's basketball team, 1920–21 Southern Branch Cubs men's basketball team, 1920–21 Michigan State Normal Normalites men's basketball team, 1920–21 Luxembourg National Division, 1920–21 Cardiff City F.C. season, 1920–21 University of Virginia men's basketball team, 1920–21 Idaho Vandals men's basketball team, 1920–21 Illinois Fighting Illini men's basketball team, 1920–21 Ljubljana Subassociation League, 1920–21 Bradford City A.F.C. season, 1920–21 Beşiktaş J.K. season, 1920–21 NCAA men's basketball season, 1920–21 Washington Sun Dodgers men's basketball team, 1920–21 Columbia Lions men's ice hockey season, 1920–21 FC Barcelona season, 1920–21 YMCA College Maroons men's ice hockey season, 1920–21 Lancashire Cup, 1920–21 St. Louis Soccer League season, 1920–21 Penn Quakers men's ice hockey season, 1920–21 WPI Engineers men's basketball team, 1920–21 RPI men's ice hockey season, 1920–21 Hong Kong First Division League, 1920–21 Harvard Crimson men's ice hockey season, 1920–21 Yale Bulldogs men's ice hockey season, 1920–21 Colgate men's ice hockey season, 1920–21 Connecticut Aggies men's basketball team, 1920–21 Williams Ephs men's ice hockey season, 1920–21 Washington State Cougars men's basketball team, 1920–21 French Ice Hockey Championship, 1920–21 Indiana State Sycamores men's basketball team

1920–21 Swiss Serie A, 1920–21 Prima Categoria, 1920–21 in English football, 1920–21 El Mokhtalat Club season, 1920–21 Chelsea F.C. season, 1920–21 in Swedish football, 1920–21 Divizia A, 1920–21 Irish League, 1920–21 Division 2 Sydsvenska Serien, 1920–21 Nemzeti Bajnokság I, 1920–21 Belgian First Division, 1920–21 Scottish Football League, 1920–21 Missouri Tigers men's basketball team, 1920–21 Kansas Jayhawks men's basketball team, 1920–21 Football League, 1920–21 Colgate men's basketball team, 1920–21 Rangers F.C. season, 1920–21 Brentford F.C. season, 1920–21 Manchester United F.C. season, 1920–21 Montreal Canadiens season, 1920–21 Kentucky Wildcats men's basketball team, 1920–21 St. Francis Terriers men's basketball team, 1920–21 Georgetown Hoyas men's basketball team, 1920–21 Arsenal F.C. season, 1920–21 Ottawa Senators season, 1920–21 Cincinnati Bearcats men's basketball team, 1920–21 Stoke F.C. season, 1920–21 Newport County A.F.C. season, 1920–21 Primera Fuerza season, 1920–21 NCAA season, 1920–21 Navy Midshipmen men's basketball team, 1920–21 Svenska Serien, 1920–21 Austrian First Class, 1920–21 Malmö FF season, 1920–21 Burnley F.C. season, 1920–21 Drexel Blue and Gold men's basketball team, 1920–21 Buffalo Bulls men's basketball team, 1920–21 Blackpool F.C. season, 1920–21 Aston Villa F.C. season, 1920–21 FA Cup, 1920–21 Loyola Ramblers men's basketball team, 1920–21 in Scottish football, 1920–21 Bates men's ice hockey season, 1920–21 NHL season, 1920–21 PCHA season, 1920–21 Rochdale A.F.C. season, 1920–21 Maltese Premier League, 1920–21 Toronto St. Patricks season, 1920–21 Hamilton Tigers season, 1920–21 in Mandatory Palestine football, 1920–21 Southampton F.C. season, 1920–21 Scottish Cup, 1920–21 Trinity Blue and White men's basketball team, 1920–21 Niagara Purple Eagles men's basketball team, 1920–21 Amherst men's ice hockey season, 1920–21 in Belgian football, International cricket in 1920–21, 1920–21 Birmingham F.C. season, 1920–21 Gillingham F.C. season, 1920–21 Manchester City F.C. season, 1920–21 William & Mary Indians men's basketball team, 1920–21 Penn Quakers men's basketball team, 1920–21 Southern Branch Cubs men's basketball team, 1920–21 Michigan State Normal Normalites men's basketball team, 1920–21 Luxembourg National Division, 1920–21 Cardiff City F.C. season, 1920–21 University of Virginia men's basketball team, 1920–21 Idaho Vandals men's basketball team, 1920–21 Illinois Fighting Illini men's basketball team, 1920–21 Ljubljana Subassociation League, 1920–21 Bradford City A.F.C. season, 1920–21 Beşiktaş J.K. season, 1920–21 NCAA men's basketball season, 1920–21 Washington Sun Dodgers men's basketball team, 1920–21 Columbia Lions men's ice hockey season, 1920–21 FC Barcelona season, 1920–21 YMCA College Maroons men's ice hockey season, 1920–21 Lancashire Cup, 1920–21 St. Louis Soccer League season, 1920–21 Penn Quakers men's ice hockey season, 1920–21 WPI Engineers men's basketball team, 1920–21 RPI men's ice hockey season, 1920–21 Hong Kong First Division League, 1920–21 Harvard Crimson men's ice hockey season, 1920–21 Yale Bulldogs men's ice hockey season, 1920–21 Colgate men's ice hockey season, 1920–21 Connecticut Aggies men's basketball team, 1920–21 Williams Ephs men's ice hockey season, 1920–21 Washington State Cougars men's basketball team, 1920–21 French Ice Hockey Championship, 1920–21 Indiana State Sycamores men's basketball team, 1920–21 Gold Cup, 1920–21 Yorkshire Football League, 1920–21 Iowa State Cyclones men's basketball team, 1920–21 Carnegie Tech Tartans men's ice hockey season, 1920–21 Scottish Districts season, 1920–21 Liverpool F.C. season, 1920–21 Ohio Bobcats men's basketball team, 1920–21 City Cup, 1920–21 Isthmian League, 1920–21 MIT Engineers men's ice hockey season, 1920–21 Clarkson Golden Knights men's ice hockey season, 1920–21 Galatasaray S.K. season, 1920–21 Port Vale F.C. season, 1920–21 Bowdoin Polar Bears men's ice hockey season, 1920–21 Dartmouth Indians men's ice hockey season, 1920–21 SK Rapid Wien season, Recession of 1920–1921, 1920–21 Istanbul Football League, 1920–21 Army Cadets men's ice hockey season, 1920–21 Huddersfield Town A.F.C. season, 1920–21 Aberdeen F.C. season, 1920–21 Princeton Tigers men's ice hockey season, 1920–21 Michigan Wolverines men's basketball team, 1920–21 Northern Football League, 1920–21 Dumbarton F.C. season, 1920–21 Hibernian F.C. season, 1920–21 Wisconsin Badgers men's basketball team, 1920–21 Challenge Cup, 1920–21 Cornell Big Red men's ice hockey season, 1920–21 Sheffield Shield season, 1920–21 Sussex County Football League, 1920–21 Boston College Eagles men's ice hockey season, 1920–21 Eintracht Frankfurt season, 1920–21 Massachusetts Agricultural Aggies men's ice hockey season, 1920–21 Yorkshire Cup, 1920–21 Holy Cross Crusaders men's basketball team, 1920–21 Heart of Midlothian F.C. season, 1920–21 Southern New England Soccer League season, 1920–21 FA Cup qualifying rounds, 1920–21 Belfast Charity Cup, 1920–21 Indiana Hoosiers men's basketball team, 1920–21 National Challenge Cup, 1920–21 Philadelphia Sphas season, 1920–21 Sarajevo Football Subassociation First League, 1920–21 British Home Championship, 1920–21 Danish National Football Tournament, 1920–21 Notre Dame Fighting Irish men's ice hockey season, 1920–21 FC Basel season, 1920–21 Michigan College of Mines Huskies men's ice hockey season, 1920–21 National Association Foot Ball League season, 1920–21 Serbian Football Championship, 1920–21 Fordham Rams men's ice hockey season, 1920–21 Western Football League, 1920–21 Real Madrid CF season, 1920–21 Rugby Union County Championship, 1920–21 Dundee F.C. season, 1920–21 Northern Rugby Football Union season, 1920–21 Dundee Hibernian F.C. season, 2020–21 Calcio Foggia 1920 season, English cricket team in Australia in 1920–21