In Tennis, there are three surfaces on which the game is played. Hard Courts, Grass and Clay are the three predominant surfaces, with a small difference even in the Hard Court. In Australia, the games are played on a Plexicushion since 2008, a medium-paced hard court with lower bounce and less spin than the US Open, which is on DecoTurf and is slightly faster with higher bounce. The style of play depends on the dynamics on the surface. Clay courts effect how the ball spins and is returned. Clay tennis courts favor players who can play defense.
Players preserve more energy playing on a clay court since they can slide into their shots instead of coming to a complete stop. The bounce of a tennis ball is also higher and slower than that of a hard tennis court. Clay courts take away many of the advantages of a big serve, making it harder for serve-based players to dominate on the surface. While initially cheaper to build, clay tennis courts require a lot of careful management.
Grass tennis courts are seen infrequently due to the hefty maintenance required of frequent watering and mowing. They also take a long time to dry after rain, but overall the grass surface is much more physically forgiving to the human body than hard courts.
Grass tennis courts are the fastest type of courts. Consisting of grass grown on hard-packed soil, a grass tennis court provides many variables depending on how recently it has been mowed, the health of the grass, and how recently others have played on the court. All of these factors will affect the bounce of the ball. Bounces tend to be fast and low, rallies are short, and the serve plays a bigger role than on other surfaces. Serve and volley players tend to have the greatest advantage on a grass court.
Hard courts are composed of rigid materials such as concrete or asphalt and then topped with an acrylic or synthetic layer to seal it. Tennis players who play well all around will have the advantage on a hard-concrete court. Play on a hard court is generally faster because there is little energy absorption by the court. Players can apply many types of spins during play and the ball tends to bounce high. The speed of rebound is determined by how much sand is in the synthetic or acrylic layer on top of the hard foundation.
As mentioned above, Clay Court offers more bounce but it comes on slowly. This allows defensive baseline players with plenty of top spin to dominate on the surface. This is the prime reason why Rafael Nadal is the King of Clay as his aggressive defense combined with his ability to generate tremendous top spin allows the ball an extra kick. Grass is quicker and it aids big serves as well as it aids serve and volley players. This is the reason why Pete Sampras and Stefan Edberg achieved success in Wimbledon. Hard Courts, depending on Australia and US, takes a physical toll on the players as the surface is harder.
If one has to get their basics right in Tennis, then one has to start with Clay as it builds up fitness and skill levels. Economically, Clay Courts are easier to maintain and it can be built with relative ease. Maintenance of Grass courts is hard as it requires lot of water and it needs the right weather to ensure that the grass is not dried. Hard Courts are expensive to make.
When one looks at the difficulty level, it depends on the style of play one adopts in a Tennis match. If the player had a big serve, then he/she will struggle on clay. If he/she is a primarily serve and volley player, then Grass and Hard Courts will suit. If one is a baseline player, then he/she might struggle on Grass and Hard Courts. However, an all-round skilled player excels on all surfaces and that is why the likes of Nadal, Roger Federer and Novak Djokovic are all legends in Tennis.