
The 3. Liga is a professional association football league and the third division in Germany. In the German football league system, it is positioned between the 2. Bundesliga and the fourth-tier Regionalliga.

Assam State Premier League (ASPL) is the top division football league in the Indian state of Assam organised by Assam Football Association. The inaugural edition of the league started in 2008 with Assam Rifles SC winning the first season.

The Balkan International Basketball League (BIBL), also known as the Balkan League, is a multinational professional basketball league that features pro clubs from the Balkans. The league includes teams from the countries of Bulgaria, North Macedonia, Montenegro, Kosovo, Albania, and Israel. The most recent league champion is Blokotehna of Gevgelija, North Macedonia.

The Campeonato Nacional de Promoção de Futebol Feminino is the second-highest division of the Portuguese women's football league system, after the Campeonato Nacional de Futebol Feminino. It is run by the Portuguese Football Federation and began in 2008. The current champions are Benfica, who won their first title in 2019.

The Champions League Twenty20, also referred to as the CLT20, was an annual international Twenty20 Cricket competition played between the top domestic teams from major cricketing nations. The competition was launched in 2008 with the first edition held in October 2009. It was jointly owned by the BCCI, Cricket Australia and Cricket South Africa, and was chaired by N. Srinivasan, who was also the chairman of the ICC. Sundar Raman was the Chief Operating Officer (COO) of the CLT20 as well as the IPL.

Championship League was a PDC darts tournament that used a league and legs format similar to the Premier League but offered the top players outside the top 8 in the PDC Order of Merit a chance to compete for the championship. It was the first ever darts tournament to be solely broadcast on and funded by Internet distribution.

The Continental Indoor Football League (CIFL) was an indoor football league based along the Midwestern United States region that played nine seasons from 2006 to 2014. It began play in April 2006 as the Great Lakes Indoor Football League (GLIFL). It was formed by Jeff Spitaleri, his brother Eric, and a third member, Cory Trapp, all from the Canton, Ohio, area.

The Cyberathlete Professional League (CPL) was a professional sports tournament organization specializing in computer and console video game competitions. It was founded by Angel Daniel Munoz on June 27, 1997 in Dallas, Texas. The CPL is considered the pioneer in professional video game tournaments, which have been held worldwide. The CPL's tournaments are open to all registrants, but due to the ESRB content rating of some video games, CPL competitions are restricted to participants age 17 or older. The CPL has distributed more than US$3 million in cash prizes.

The East Midlands Counties Football League is an English football league that was founded in 2008. The league has one division, which stands at the tenth level of the football pyramid.

The Filipino Premier League was the top-level football league of the Philippines, operating under the country's football governing body, the Philippine Football Federation. The league was announced on August 2, 2008 and started on September 21, 2008. It was replaced by the United Football League in 2009.

The I-League 2nd Division is an Indian professional football league. It is currently the 3rd tier of the Indian football league system, behind the Indian Super League and I-League. It operates as a system of promotion and relegation with I-League.

The Indian Premier League (IPL) is a professional Twenty20 cricket league in India usually contested between March and May of every year by eight teams representing eight different cities or states in India. The league was founded by the Board of Control for Cricket in India (BCCI) in 2007. The IPL has an exclusive window in ICC Future Tours Programme.

The Indoor Football League (IFL) is a professional indoor American football league created in 2008 out of the merger between the Intense Football League and United Indoor Football. It has one of the largest number of currently active teams among indoor football leagues. The league has operated continuously under the same name and corporate structure longer than any other current indoor football league. IFL players earn US$250 per game played. The season is typically 14 games long, plus playoffs of two or more rounds.

The Kontinental Hockey League (KHL) is an international professional ice hockey league founded in 2008. It comprises member clubs based in Belarus (1), China (1), Finland (1), Latvia (1), Kazakhstan (1), and Russia (18) for a total of 23. It is widely considered to be the premier professional ice hockey league in Europe and Asia, and second in the world behind North America's National Hockey League. The KHL has the third-highest average attendance in Europe with 6,121 spectators per game in the regular season, and the highest total attendance in Europe with 5.32 million spectators in the regular season.

The Kowsar Women Football League is a women's football league, run by the Football Federation Islamic Republic of Iran. At the top of the Iranian football league system, it is the country's primary competition for the sport.

Liga 1 is the men's top professional football division of the Indonesian football league system. Administered by the PT Liga Indonesia Baru, Liga 1 is contested by 18 clubs and operates on a system of promotion and relegation with Liga 2.

Liga Pilipinas was a regional basketball league in the Philippines. It was sanctioned by the Samahang Basketbol ng Pilipinas, the country's national basketball federation, and owned by Pinoy Basketbol, Inc.

The Manitoba Female Hockey League is an under-18 ice hockey league in the province of Manitoba, Canada. It is designated as an 'AAA' league – the highest level of minor hockey in Canada – and operates under the supervision of Hockey Manitoba.

The Erste Liga is an international ice hockey league organized for clubs based in Hungary and Romania. It is sponsored by the Erste Bank Hungary.

The National Futsal League is a futsal league in England. It is a Community Interest Company owned and controlled by its Member Clubs and administered by an annually elected Board of Directors.

The Northern Ireland Football League Championship is the second level of the Northern Ireland Football League, the national football league in Northern Ireland. Clubs in the Championship can be promoted to the highest national division - the Irish Premiership, and relegated to the third level - the NIFL Premier Intermediate League.

The NIFL Premiership, known as the Danske Bank Premiership for sponsorship purposes, and colloquially as the Irish League or Irish Premiership, is a semi-professional association football league which operates as the highest division of the Northern Ireland Football League – the national league in Northern Ireland. It was formerly called the IFA Premiership until 2013. Still known in popular parlance simply as the Irish League or the Irish Premiership, the Premiership was established in 2008 under the auspices of the Irish Football Association before the Northern Ireland Football League was created for the start of the 2013–14 season. At the end of the season, the champion club is presented with the Gibson Cup.

The Northern Junior Hockey League (NJHL) was an independent regional junior ice hockey league based in Jamestown, New York. The league operated from 2008 to 2010.

Novo Basquete Brasil (NBB) is the Brazilian premier professional men's basketball league. It is organized by the Liga Nacional de Basquete (LNB), in a new format of Brazil's previous top-tier level basketball competition, the Campeonato Brasileiro de Basquete. The NBB is managed by the Brazilian basketball associations, which were founding members of the LNB.

The NRL Under-20s was the top league of professional rugby league for players aged 20 years or younger in Australasia. Contested by sixteen teams, the Under-20s competition commenced in 2008 and was originally known as the Toyota Cup. The competition runs parallel to Australasia's professional competition, the National Rugby League, with NYC matches played immediately prior to the NRL games. Similar to the NRL, the NYC enforces a salary cap and puts a heavy focus on life outside football for the players.

The NRW-Liga, or Nordrhein-Westfalen-Liga, was the highest football league in the state of North Rhine-Westphalia from 2008 to 2012. It was one of the eleven Oberliga groups in German football, the fifth tier of the German football league system.

NYPD Cricket League or NYPD Cricket or Cricket NYPD is a private Twenty20 cricket league formed by the New York City Police Department for teenagers from the Caribbean and South Asian American communities in New York City. It is a recreational league founded to develop better relations between New York Police and the immigrant communities within the city. The league is unofficial and is not recognized by United States of America Cricket Association. Its main goal is to have good understanding and relationship with immigrant communities living in New York City.
The Prospect League is a collegiate summer baseball league comprising teams of college players from North America and beyond. All players in the league must have NCAA eligibility remaining in order to participate. So as to maintain their college eligibility, players are not paid. Beginning in 2012, the league added four games to the season, making a total of 60 games per team.

The Regional Water Polo League, commonly known as the Regional League or Adriatic League, is a regional water polo league in Southeast Europe. Originally, the league featured clubs from Croatia, Montenegro, and Slovenia. In later years, clubs from Serbia joined the league and in one season club from Italy participated in the league.

The Regionalliga West is a German semi-professional football division administered by the Western German Football Association based in Duisburg. It is one of the five German regional football associations. Being the single flight of the Western German state association, the Regionalliga is currently a level 4 division of the German football league system. It is one of five leagues at this level, together with the Regionalliga Bayern, Regionalliga Nordost, Regionalliga Nord and the Regionalliga Südwest.

The Swedish Women's Hockey League is the elite league for women's ice hockey in Sweden. It was established in 2007 by the Swedish Ice Hockey Association and has ten teams.

The Turkish Women's Second Football League is the second league competition for women's association football in Turkey.

The U-League is a university association football competition in South Korea. South Korean university football clubs were originally participating in the Korean National University Football League, founded by the Korea University Football Confederation in 1965, but the Korea Football Association created its new league competition for university clubs in 2008. It operates outside the regular South Korean football league system.

Ultimate Soccer League is a semi-professional indoor soccer league that was formed in 2008, and currently involving six teams from Illinois and one team from Indiana. The league has two divisions; Under 17, and main division.

The W-League is the top-division women's soccer league in Australia. The W-League was established in 2008 by Football Federation Australia and was composed of eight teams of which seven had an affiliation with an A-League club, and the other was a new entity based in Canberra. The league is currently contested by nine teams. The competition is known as the Westfield W-League through a sponsorship arrangement with the Westfield Group.
The Women's Football Alliance (WFA) is a professional full-contact Women's American football league that began play in 2009. It is the largest 11-on-11 football league for women. The league is owned and operated by Jeff and Lisa King of Exeter, California.

The USA Rugby Women's Premier League is the top annual American women's rugby union competition. It is player-run and operates in partnership with USA Rugby. It involves the top 10 clubs in the country. The league was founded in 2009.
The Xtreme Soccer League (XSL) was an indoor soccer league that began play in December 2008. Four teams from the former Major Indoor Soccer League participated in the first XSL season: the Chicago Storm, Detroit Ignition, Milwaukee Wave, and New Jersey Ironmen. Other former MISL teams joined the National Indoor Soccer League or Professional Arena Soccer League.