Titles counted include:
Baseball: 1857-2016 (World Series and pennants in non-World Series years);
Hockey: 1893-2016 (Stanley Cup);
Soccer: 1955-2016 (Intercontinental Cup, Small World Cup, & Club World Cup).
Includes current and defunct major leagues, such as Negro National League, National Association of Base Ball Players, American Basketball Association, National Basketball League, American Football League, and others.