International Tennis Federation 1.33

The International Tennis Federation is the governing body of world tennis, wheelchair tennis, and beach tennis. It was founded in 1913 as the International Lawn Tennis Federation by twelve national associations, and as of 2016, is affiliated with 211 national tennis associations and six regional associations.The ITF's governance responsibilities include maintaining and enforcing the rules of tennis, regulating international team competitions, promoting the game, and preserving the sport's integrity via anti-doping and anti-corruption programs. The ITF partners with the Women's Tennis Association and the Association of Tennis Professionals to govern professional tennis.The ITF organizes annual team competitions for men, women, and mixed teams, as well as tennis and wheelchair tennis events at the Summer Olympic and Paralympic Games on behalf of the International Olympic Committee. The ITF sanctions the Grand Slam tennis tournaments as well as circuits which span age ranges as well as disciplines . In addition to these circuits, the ITF also maintains rankings for juniors, seniors, wheelchair and beach tennis.