The French Open, often referred to as Roland Garros, is a major tennis tournament held over two weeks between late May and early June in ... See more Paris, France, at the Stade Roland Garros. It is the premier clay court tennis tournament in the world and the second of the four annual Grand Slam tournaments – the other three are the Australian Open, US Open and Wimbledon. Roland Garros is the only Grand Slam event held on clay and ends the spring clay court season.