The Badminton World Federation (BWF) is the international governing body for the sport of badminton recognized by the International Olympic Committee IOC. Founded in 1934 as the International Badminton Federation with nine member nations (Canada, Denmark, England, France, Ireland, Netherlands, New Zealand, Scotland and Wales), the BWF has since expanded to 176 member nations around the world. On September 24, 2006, at the Extraordinary General Meeting in Madrid, it was decided to adopt the new name Badminton World Federation (BWF).
The BWF World Ranking and BWF World Junior Ranking are introduced to determine the strength of the players. It is used for determining the qualification for entry and seeding for the BWF-sanctioned tournament. The points awarded is based on the final results of each tournament participated for the past 52 weeks. Junior Ranking consists of players under 19 years old.