International Boxing Federation Muaythai On April 28 2018, Youssef Boughanem from Belgium and Morocco became the first world champion as non-Thai kickboxer. In addition, he was the current WBC Muaythai world Middleweight champion. IBF Muaythai sanctions 17 weight division as same as boxing. This is different from WBC Muaythai as it sanctions 19 weight divisions. International Boxing Federation Muaythai International Boxing Federation Muaythai (or IBF Muaythai) is commissioned under the jurisdiction of the International Boxing Federation (IBF) as a non-profit organization to regulate, control and supervise professional Muay Thai events worldwide. The International Boxing Federation had "1st Annual Convention of IBF Muaythai" in Bangkok,
Weight class (boxing) reasons, fighters cannot fight at a higher weight. This also meant that even the heaviest weight class has a limit, albeit a lower bound. The lower limit for "heavyweight" was established in 1948 at 81 kg. When a new limit of 91+ kg was established in 1984, the name "heavyweight" was kept by the 81+ kg class, and the 91+ kg class was named "super heavyweight", a name not currently used in professional boxing. Classes are as follows: At the Olympics, each weight-class is a separate single-elimination tournament. The competition begins with the first round of the lightest weight class