"I played downwind in the second game and had to focus more on the control of the shuttle, so I made more mistakes," the 21-year-old said.

He Bingjiao will play Thtuy Linh Nguyen of Vietnam in the last 16, who upset Canada's 13th seed Michelle Li in the second round.

"Last year I finished in the round of 16 in Glasgow, and this time I want to go further," He said.

Fourth seed Ratchanok Intanon of Thailand survived a tough three-game battle against Mia Blichfeldt of Denmark to secure a place in the last 16. Intanon found herself in a tough spot in the second game, trailing by 19-16 after having lost the first 21-16, but the Thai found her form just in time to win four points in a row to win 22-20. With her confidence having returned, the 2013 champion then sealed the victory with an easy 21-10 win in the decisive third game.

Intanon now takes on tenth seed Saina Nehwal of India, who defeated Turkey's Aliye Demirbag 21-17, 21-8.

Elsewhere, two-time title winner and 7th seed Carolina Marin eased past Busanan Ongbamrungphan 21-9, 21-8 to advance.

In men's singles actions, Momota dominated the majority of the match against Pochtaro. The Japanese showed his brilliant technique and quick footwork, and above all, his sharpness in front of the net. Pochtarov tried to challenge the world no.7 with his thunderous smashes, but his hasty attacks cost him several precious points, especially in the second game when he was 5-3 down.

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