Tennis (Tennis) is a sport polished over the net on a specialized court (tennis courts).
Competitions include tennis men's singles, women's singles, Mixed. Before the players hit the ball with his hand, popular in Italy, France, England century 13-14. By the 16th century began to use the racket hit the ball over the net. In 1874, Uynhfin (MWC Wingfild, English) rules drafted players, to complete in 1875 and the name of the grass tennis courts. This is the landmark birth of modern tennis. World Championship official International Tennis Federation (abbreviated English words: ITF, founded in 1942 in Paris) does not hold. Davis Cup held annually (according to the name of the famous American tennis player Davis (C. Davis), the founder of the sport of tennis. Since 1896, tennis was included in the official competition program of Olympic Congress.
1977, the International Tennis Federation was renamed the Federation International Tennis Grass (TLTF), the national federation has 156 members. QV Vietnam Federation was formed in 1989, has held national championships every year.
Tennis rectangular, flat surface, using clay, cement, grass or synthetic materials, dimensions 40 x 20 m. Mesh width not exceeding 3 cm x 3 cm, height 91 cm grid in the middle, the pile is 107 cm 2. Rackets with wooden frames, light metal or synthetic substances, not more than 81.28 cm in length, width not exceeding 31.75 cm, weight 255-340 g for children, 340-400 g for adults . Rubber ball, blue or white coated felts, weighing 56.7 to 58.5 g, diameter from 6.35 to 6.67 cm.