The only Grand Slam tournament played on grass is Wimbledon. It is held at the All England Lawn Tennis and Croquet Club in London and is the oldest tennis tournament in the world, dating back to 1877. Wimbledon is unique among the Grand Slams for maintaining the traditional grass surface, which is cut to a height of 8mm and made from 100% rye grass since 2000. This surface makes the game faster with a lower bounce, creating a distinctive style of play compared to other Grand Slam tournaments that use clay or hard courts. Other Grand Slams, like the Australian Open and US Open, previously used grass but have since switched to hard courts