1925 French Championships (tennis) 1925 French Championships (tennis) The 1925 French Championships (now known as the French Open) was a tennis tournament that took place on the outdoor clay courts at the Stade Français in Paris, France. The tournament ran from 28 May until 6 June. It was the 30th staging of the French Championships and the second Grand Slam tournament of the year. It was the first time the tournament was open to players who were neither French citizens nor residents of France. Suzanne Lenglen won all three events she entered; the women's singles, the women's doubles, and the mixed doubles. René Lacoste
Clay court Clay court A clay court is one of many different types of tennis court. Clay courts are made of crushed shale, stone, brick, or other unbound mineral aggregates. The French Open uses clay courts, making it unique among the Grand Slam tournaments. Clay courts are more common in Continental Europe and Latin America than in North America, Asia or Britain. Two main types exist: red clay, the more common variety, and green clay, also known as "rubico", which is a harder surface. Although less expensive to construct than other types of tennis courts, the maintenance costs of clay are high