1958 Thomas Cup outcome had been determined. Indonesia's Tan Joe Hok went through the entire Thomas Cup campaign undefeated in singles (Sonneville had dropped a match to Finn Kobbero). Tan would win the All-England singles title the following year and for a time would be regarded as the best player in the world. For a much longer time Indonesia would be the country to beat in international team badminton. 1958 Thomas Cup The Thomas Cup competition is an international team tournament for supremacy in men's badminton (its female counterpart is the Uber Cup). Beginning in 1948-1949 it was held every three years until
World Badminton Federation South African Badminton Union not to participate in the Thomas and Uber Cups or IBF World Championships. Relatively minor changes in voting rules were also approved. In March 1981, a special conference was held with the voting result of 57 to 4 in support of unification. On May 26, 1981, the World Badminton Federation officially united with International Badminton Federation. World Badminton Federation The World Badminton Federation is a former badminton organization, it was founded in February 1978 and ceased its operation on May 26, 1981 after it merged with the International Badminton Federation (now known as Badminton World Federation