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Read the guideTennis scoring sounds strange at first: love, 15, 30, 40. Here is how points, games, sets and tie-breaks work, and how to serve and stay in the rules.
Singles uses the inner side lines; doubles uses the outer ones. The lines are part of the court: a ball touching the line is in.
The exact origin is not certain; the numbers are a tradition kept from early tennis. Just remember: love (0), 15, 30, 40, game.
When both players reach 40, it is deuce. A player must then win two points in a row: advantage, then the game.
When a set reaches 6 games all. Players count points 1, 2, 3, and the first to 7 with a 2-point lead wins the set 7-6.
In. The lines belong to the court they surround.
Two. If both miss the service box it is a double fault and the opponent wins the point. A let, touching the net and landing in, is taken again.
Sources: ITF: Rules of Tennis
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