Tennis Courts:
For most of the Open Era, tennis analysts and players considered Wimbledon's grass courts to be the fastest-playing surface of the grand slams, the clay courts at Roland Garros to be the slowest, and the hard courts first used at the U.S. Open and then later at the Australian Open to fall somewhere in between.
Tennis is played on a variety of surfaces and each surface has its own characteristics which affect the playing style of the game.
There are four main types of courts, depending on the materials used for the court surface:
Clay Courts
Hardcourts
Grass Courts
Carpet Courts
A hardcourt (or hardcourt) is a surface or floor on which a sport is played, most usually in reference to tennis courts. They are typically made of rigid materials such as asphalt or concrete, and covered with acrylic material to seal the surface and mark the playing lines, while providing some cushioning.