1955 French Championships (tennis) 1955 French Championships (tennis) The 1955 French Championships (now known as the French Open) was a tennis tournament that took place on the outdoor clay courts at the Stade Roland-Garros in Paris, France. The tournament ran from 24 May until 4 June. It was the 59th staging of the French Championships, and the second Grand Slam tennis event of 1955. Tony Trabert and Angela Mortimer won the singles titles. Tony Trabert defeated Sven Davidson 2–6, 6–1, 6–4, 6–2 Angela Mortimer defeated Dorothy Knode 2–6, 7–5, 10–8 Vic Seixas / Tony Trabert defeated Nicola Pietrangeli / Orlando Sirola 6–1, 4–6, 6–2,
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