Singles involves two players competing against each other, usually two men or two women, although games between a man and a woman may be played on an informal basis or as exhibitions.
The server then hits the ball over the net into the diagonally opposite service box.
The two players on the receiving side change positions after each point played (one at the net and the other near the baseline, preparing to return serve).
This form of tennis is rare in the professional game because the men's and women's tours are organized separately (by the ATP and WTA, respectively).
An informal and unsanctioned form of tennis, this is played with similar rules to Canadian doubles, only in this version, players rotate court position after each game.
[4] It usually uses a smaller court and a lower net than standard tennis; up to three bounces may be allowed before returning the ball.
[5] While sound tennis is not part of ITF, ATP, and WTA tournaments, an international tournament is held annually, and world rankings are published for male and female players with different degrees of disability.
[6] There is an evolution in tennis training that employs the use of low-compression balls and in some cases modified court sizes.
The use of low-compression balls and modified court sizes is meant to ease the process into becoming a competitive or amateur tennis player.