Strings (tennis)
The material used in tennis string can significantly affect a player's performance, and even health. Several materials are used to make tennis strings. They vary in terms of elasticity, durability, rebound efficiency, tension holding capability, and manufacturing cost, among other considerations.
Real tennis
The rules and scoring are similar to those of lawn tennis, which derives from real tennis, but are more complex. Although in both sports game scoring is by fifteens (with the exception of 40, which was shortened from forty-five), in real tennis, six games wins a set, without the need for a two-game buffer as in lawn tennis although some tournaments play up to nine games per set. A match is typically best of three sets, except for the major open tournaments, in which matches are best of five sets for men, and the best of three sets for women.