The term 'SIX TENNIS GAMES' refers to the six games that make up a SET in a tennis match. A SET is the first to win six games by a margin of two games. The winner of the SET is the first player or team to win six games and have a two-game lead over their opponent. Sets are usually played best-of-three or best-of-five, depending on the tournament. In professional tennis, sets are typically played as best-of-three, with the exception of the Grand Slam tournaments, which are played as best-of-five.