Tennis is played by hitting a ball over a net into the opponent's side of the court. Players score points when the opponent fails to return the ball legally. A match consists of points forming games, games forming sets, and sets forming the matches. Points are counted as 15 or the first point, 30 or the second point, 40 or the third point, and game point for the fourth point. Zero points are called "love". If both players reach 40 points to 40, a player must win two consecutive points to win the game. The first point after is called "advantage" . Winning 6 games with a 2-game lead wins a set. A tiebreak is played if a set reaches 6-6.