Women’s doubles duo Jongkolphan Kititharakul and Rawinda Prajongjai claimed probably the biggest win of their career when they upset Chinese world No.1 Chen Qingchen and Jia Yifang 21-19, 21-15 in the quarter-finals of the Indonesia Open on Friday. It is the Thais’ first victory over Chen and Jia, who have won the world title twice and were runners-up at last year’s Olympics, in 13 meetings. Jongkolphan and Rawinda are the only Thais remaining in the US$1.2 million event in Jakarta. The seventh-seeded Thai pair will meet sixth seeds Nami Matsuyama and Chiharu Shida in Saturday’s semi-finals of…