Canadian Milos Raonic was eliminated Friday from the Thailand Open in Bangkok, losing 6-3 7-6(3) to Jarkko Nieminen of Finland.
Nieminen, the No. 7 seed, advances to the semifinals against Richard Gasquet of France.
Raonic, the No. 3 seed, had eight aces and no double-faults but could not break Nieminen's serve.
(Canada) quarterfinal match Thailand Open in Bangkok
It was the first meeting between Raonic, 21, and Nieminen, 31.
At Kuala Lumpur, Canadian Vasek Pospisil, 22, also was eliminated in a quarterfinal, losing 6-3, 6-4 to Juan Monaco of Argentina at the Malaysian Open.
Monaco, the second seed at the event, will play Kei Nishikori of Japan in a semifinal.
At Beijing, Canadian Eugenie Bouchard lost in the first qualifying round of the China Open, a WTA tournament.
Bouchard, ranked 170th in the world, lost 6-3, 2-6, 6-1 to Russian Elena Vesnina.