The International Sumo Federation (IFS) is the largest international governing body of sport Sumo with over 87 member countries. It was formed in 1992 and is the only Sumo organization recognised by the International Olympic Committee and World Anti-Doping Agency. History Members International Sumo Federation has 87 established National Sumo Federations. Organization International Sumo Federation encourages the sport's development worldwide, including holding international championships. A key aim of the federation is to have Sumo recognized as an Olympic sport. Accordingly, amateur tournaments are divided into weight classes. Weight classes 1992–2018 Age restrictions of 13–18 years old apply 2019–present Age restrictions of 13–18 years old apply Presidents Events Discipline championships Sumo World Championships European Sumo Championships North American Sumo Championships Oceania Sumo Championships Other events Sumo at the World Games Sumo at the 2013 World Combat Games See also Australian Sumo Federation Japan Sumo Association US Sumo Federation References External links Sumo organizations IOC-recognised international federations Sports organizations established in 1992 Martial arts organizations