Laboratory testing of tennis strings

Most tennis strings have a performance rating of almost 10 out of 10 if one can believe the manufacturers’ claims. Laboratory tests of tennis strings provide a different picture. The test methods and the results of testing 90 different strings are described. This type of information is needed if players, coaches and stringers wish to make an informed comparison between different strings, and it is also needed if one wishes to model the interaction between a tennis racket and a tennis ball.