Stade Roland Garros - Playing Surface

Playing Surface

While the Roland Garros surface is invariably characterized as "red clay", the courts are in fact surfaced with white limestone frosted with a few millimeters of powdered red brick dust. Beneath the 3-inch-thick layer of porous limestone is 6 inches of volcanic rock, followed by a 3-foot (0.91 m) layer of sand, all of which rests on a slab of concrete. Crushed brick is pressed onto the limestone surface with rollers, then drenched in water. The process is repeated several times until a thin, compact layer coats each court. The crushed brick is deep enough to allow footprints and ball marks, but shallow enough to avoid making the court spongy or slippery. In tournament situations workers smooth the surface before matches and between sets by dragging rectangular lengths of chain-link across it. The red brick dust is replenished as needed (daily during major tournaments).

The surface was a state-of-the art solution, in 1928, to the biggest problem with natural clay courts: poor drainage. At the time it was not unusual for clay surfaces to be unplayable for two to three days after even short periods of precipitation. The limestone/crushed brick combination, originally developed in Britain, played and looked similar to clay without clay's drainage issues, thus rendering natural clay obsolete as a tennis court surface. Since then a multitude of other "fast-dry" and synthetic clay surfaces have been developed. Courts surfaced with these materials play much like natural clay surfaces and are collectively classified as "clay courts", despite the fact that few if any true clay courts have been built for almost a century. The diversity in composition of various "clay" surfaces around the world explains the extraordinary variability in their playing characteristics.

“All clay courts are different,” Venus Williams has said. “None play the same. plays the best.”