Series
"Series" in the LongSwims Database refers to annual events that are not tied to a specific location, and which are typically organized by a national or international governing body (such as FINA or USA Swimming). A "series" could be a championship event such as FINA Worlds, USA Nationals, or the Olympic Games. Or it could be a multi-leg seasonal series such as the FINA World Cup or LEN Cup.
- FINA
- World Championships (1991 to present)
- Olympic Games (2008 to present)
- Marathon Swimming World Series (2018-present)
- UltraMarathon Swim Series (defunct, held 2018-2021)
- 10km World Cup (defunct, held 2007-2017)
- Grand Prix (defunct, held 2007-2017)
- Marathon Swimming World Cup (defunct, held 2000-2006)
- World Cup Long Distance Swimming Championships (defunct, held 1986-1996)
- Ligue Européenne de Natation (LEN)
- USA Swimming - Open Water National Championships (1994 to present)
- Swimming Australia - Australian Open Water Championships (2015 to present)
- United States Masters Swimming (USMS)
- National Championships (1998 to present)
- World Professional Marathon Swimming Federation / WPMSF (defunct, held 1960s-1980s)
- International Marathon Swimming Association / IMSA (defunct, held 1992-1998)