Wimbledon Divisions are the four categories of tennis players that compete in the Wimbledon Championships, one of the four Grand Slam tournaments. The four divisions are Men's Singles, Women's Singles, Men's Doubles, and Women's Doubles. Each division is composed of 128 players who compete in a single-elimination tournament to determine the champion. The Sets division, which has 4 letters, refers to the number of sets that must be won in order to win a match.