
The Alliance of American Football (AAF) was a professional American football league that played a portion of one season in 2019. The AAF consisted of eight centrally owned and operated teams in the southern and western United States, seven of which were located in metropolitan areas with at least one major professional sports franchise.

The American Premier Soccer League (APSL) was a soccer league sanctioned by the United States Adult Soccer Association (USASA) with teams primarily in Southern Florida.

The Arena Football League (AFL) was a professional indoor American football league in the United States. It was founded in 1987, making it the third longest-running professional football league in North America after the Canadian Football League (CFL) and the National Football League (NFL) until the AFL closed in 2019. The AFL played a proprietary code known as arena football, a form of indoor American football played on a 66-by-28 yard field, with rules encouraging offensive performance, resulting in a faster-paced and higher-scoring game. The sport was invented in the early 1980s and patented by Jim Foster, a former executive of the United States Football League (USFL) and the NFL. Each of the league's 32 seasons culminated in the ArenaBowl, with the winner being crowned the league's champion for that season.

The Canadian Women's Hockey League was a women's ice hockey league. Established in 2007 as a Canadian women's senior league in the Greater Toronto Area, Montreal, and Ottawa, the league eventually expanded into Alberta, as well as teams in China and the United States throughout its tenure. The league discontinued operations May 1, 2019, after 12 seasons of operations. For most of its existence, it was the highest level women's hockey league in North America while registered as an amateur association. It paid its players a stipend during its last two seasons.

The Cymru Alliance League was a football league in north and central Wales which formed the second level of the Welsh football league system. From the 2019/20 season onwards, it was replaced by the Cymru North.

The Eastern Wrestling League (EWL) was an NCAA Division I wrestling-only conference. It was made up mostly of schools from the northeastern United States whose primary conferences did not sponsor wrestling as an NCAA-qualifying event. The teams had traditionally rotated as hosts of the qualifying tournament.

The Heartland Conference was a collegiate athletic conference affiliated with the National Collegiate Athletic Association (NCAA)'s Division II level, which was founded in 1999. The majority of members were in Texas, with additional members in Arkansas, Kansas, and Oklahoma. The conference office was located in Waco, Texas.

The Philippine Premier League (PPL) was a short-lived top-flight association football league in the Philippines sanctioned by the Philippine Football Federation (PFF). It was intended as a successor league to the Philippines Football League (PFL) which ran for two seasons. The first and only PPL season only had a single match day on April 27, 2019 before it was folded after the PFF withdrew its sanction of the league.

The Women's Cricket Super League (WCSL), known as the Kia Super League (KSL) for sponsorship reasons, was a semi-professional women's Twenty20 cricket competition in England and Wales operated by the England and Wales Cricket Board (ECB). The competition featured six franchise teams, partnered with a variety of county teams and boards and universities, and was envisaged as a means to bridge the gap between amateur domestic cricket and the increasingly professional international game.