The 여자 테니스 협회 (WTA) is the principal governing body for women's professional tennis. Founded in 1973 by 빌리 진 킹, the WTA aims to promote and develop women's tennis globally. It organizes the WTA Tour, which includes various tournaments leading up to the prestigious WTA Finals. The WTA is responsible for ranking female players based on their performance in tournaments. The rankings help determine seedings in competitions and provide a framework for players' standings in the sport. The organization also advocates for gender equality and fair treatment in tennis and sports overall.