of finely crushed loose particles. Such courts are most common in Europe and Latin America. The exact color of the surface varies with the composition of the bricks used, and can appear from a light yellow to a deep red, with a medium orange being most common. En tout cas (French for "in any case") is a version of red clay with a coarser top layer to improve drainage. The coarser surface allows more water to run through the surface of the court drying the surface more quickly after rain. Natural clay courts are rare because this type of surface does not absorb water easily and takes two to three days to dry. A good example of natural red clay can be seen at the Frick Park Clay Courts in Pittsburgh, a public facility of six red clay courts that has been in continual use since 1930. The Copa Sevilla Open is played on yellow clay courts due to the kind of crushed brick used in its composition. While composed in the same way as red clay, it is a noticeably bright yellow and visually distinct from other red clay type courts. Green clay Green clay, also known by brand names such as Har-Tru and Rubico, is made of crushed metabasalt rather than brick, making the surface slightly harder and faster than red clay. These courts are located primarily in the mid-Atlantic and southern United States. They are also found in Central and Eastern Canada. There is one WTA tournament played on green Har-Tru clay courts, the Charleston Open in Charleston, South Carolina. From 1975 until 1977, the US Open was played on Har-Tru clay courts. The US Men's Clay Court Championships are played on clay that has a maroon color. Not only is this a darker color than other clay courts used in the professional game, but it is also a type of Har-Tru court, meaning it is actually composed of the same substance (basalt) as green clay courts, and not a type of red clay. Players In the pre-open era Anthony Wilding is particularly notable for his achievements on clay courts. Starting in May 1910 at the Championship of South Africa and ending in June 1914 at the World Hard Court Championships he registered 120 consecutive clay court match victories. Rafael Nadal, winner of a record 14 French Open men's singles titles, is noted for his success on