Duane Williams, an American who lived in Switzerland, is generally recognized as the initiator and driving force behind … See more

Its official annual is The ITF Year, describing the activities of the ITF over the last 12 months. This replaced World of Tennis, which was the ITF official annual from 1981 through 2001. In addition, it publishes a… See more

As of 2017, there are 211 national associations affiliated with the ITF, of which 148 are voting members and 63 are associate members. The criteria for allocating votes (1, 3, 5, 7, 9, or 12) to each voting mem… See more

The ITF is the world governing body for the sport of tennis. Its governance includes the following responsibilities: make, amend, and enforce the Rules of Tennis; regulate international team competitions; promote the game o… See more

The ITF operates the two major annual international team competitions in the sport, the Davis Cup for men and the Billie Jean King Cup for women. It also sanctions the Hopman Cup, an annual mixed-gender team tourn… See more

The ITF designates a World Champion in several disciplines each year based on performances throughout the year, emphasizing the Grand Slam tournaments, and also considering team events such as the Davis C… See more