Of the Grand Slam tournaments, the US Open and Australian Open use hard courts ( though both used grass courts in the past, and the US Open used clay courts from 1975 through 1977 ), the French Open is played on clay ( though it too was played on grass before 1928 ), and Wimbledon has always been played on grass.

Of the Grand Slam tournaments, the US Open and Australian Open currently use hard courts and it is the predominant surface type used on the professional tour.

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