However, there was a fourth surface that was a legitimate court in the 1980s and beyond ... and was made of nylon or rubber matting on top of concrete. ???? in ?????.First tennis game in ...

A tennis ball is made of hollow rubber and covered with felt ... which runs parallel to -- and 21 feet from -- the net. What is the playing surface of an Olympic tennis court? The playing surface for ...

sports courts, and more. - Addressing common concerns around toxicity and environmental impact. The white paper is available for free download at rubber-surfaces . About Rubber Surfaces ...