when is a tie break used in tennis
Tennis scoring system A set is won by the first side to win 6 games, with a margin of at least 2 games over the other side (e.g. 6–3 or 7–5). There is usually a tie-break if the set is tied at six games per player.
History of tennis In 1968, commercial pressures and rumors of some amateurs taking money under the table led to the abandonment of this distinction, inaugurating the Open Era (see below), in which all players could compete in all tournaments, and top players were able to make their living from tennis.[7] With the beginning of the open era, the establishment of an international professional tennis circuit, and revenues from the sale of television rights, tennis's popularity has spread worldwide, and the sport has shed its upper/middle-class English-speaking image[8] (although it is acknowledged that this stereotype still exists).[8][9][10]