United States Baseball League was created in 1912.
United Irish League was created in 1898.
United Hockey League was created in 1991.
VTB United League was created in 2008.
United Soccer League was created in 1984.
United Basketball League was created in 2006.
Navy League of the United States was created in 1902.
United Indoor Football League was created in 2010.
United Soccer League of Pennsylvania was created in 1959.
United Football League - Philippines - was created in 2009.
Sunbury United Rugby League was created in 1992.
Economic League - United Kingdom - was created in 1919.