There are four Grand Slams:
Wimbledon
The Grand Slam courts are made of different surfaces depending on the tournament. For example, the Australian Open features hard courts made of a synthetic acrylic material, while the French Open is played on clay courts composed of crushed brick or stone. Wimbledon uses grass courts, which are natural grass, and the US Open utilizes a hard court system similar to that of the Australian Open. Each surface affects the speed and style of play differently.
The French Open is the only one of the four Grand Slam tournaments to be played on clay courts.
Wimbledon is played on grass courts.
Grass courts.
Grass.
Grass.
Wimbledon.
Grass and Clay
Grass/Turf
the Davis Cup and Wightman Cup tournaments
Asphalt gravel clay grass wood synthetic grass carpet