Development of a Rating System for All Tennis Players

A mathematically based method for evaluating the ability of tennis players is recommended to replace the ad hoc methods now followed. This method involves deriving a numerical rating (TCAP) for each player by utilizing match scores. Such ratings can be put to many uses, such as tournament placement, handicapping, match and tournament result prediction, and player progress evaluation. Extensive results have been obtained for both professional and amateur players, and indications are that eventually all serious tennis players may be rated by the same system. Finally, these results lead to insights into the game, including the conclusion that the professionals have nearly the same variability within their group as do the amateurs within theirs.