PATTAYA, Thailand, Feb. 11 (UPI) -- Ekaterina Bychkova pulled off the biggest upset of Thursday's second-round play at the PTT Pattaya Open tennis tournament in Thailand.
Bychkova defeated fellow Russia Vera Dushevina, the tournament's No. 3 seed, 6-4, 6-1, piling up six breaks in Dushevina's nine service games. Bychkova won 55 percent of the points when Dushevina served in advancing to the quarterfinals.