The United States dominated the track and field events yesterday by claiming three Gold Medals. In Table-Tennis, China repeated their Beijing Games performance with a clean sweep of all the Olympic golds.Apart from Luka's 800 metres semi-finals, Indian athletes will also be seen in action in Athletics and Wrestling. Sahana Kumari will figure in the women's high jump qualification round while Geeta Phogat will compete in the women's 55 kg Freestyle Wrestling.At the end of the 12th day of competitions, China were leading the medals table with 36 Gold, 22 Silver and 19 Bronze. The United States are in the second spot with 34 Gold, 22 Silver and 25 Bronze. Hosts Great Britain follow in the third position, with 22 Gold, 13 Silver and 13 Bronze.