Samarinda, East Kalimantan (ANTARA News) - Indonesia is now assured of a champion`s title with the victory of its men`s single player, Taufik Hidayat, over China`s Zhengming Wang at the quarterfinals of the Indonesia Open Grandprix Gold badminton tournament here on Friday.

Taufik beat Zhengming Wang in a straight set 21-17, 21-15.

With Taufik`s win, Indonesia will field four men`s single players in the semifinals on Saturday, namely Taufik, Tommy Sugiarto, Alamsyah Yunus and Dionysium Hayom Rumbaka.

Tommy Sugiarto advanced to the semifinals after beating Kwong Beng Chang of Malaysia 21-15, 21-19 while Dionysius Hayom Rumbaka defeated Takume Ueda of Japan 21-14, 21-16.

Alamsyah Yunus also qualified for the semifinals following his victory over Misbun Ramdan Mohme Misbun from Malaysia 21-16, 21-14.

Other semifinalists from Indonesia are Anneke Feinya Agustin and Nitya Krishinda Maheswari in the women`s doubles. They are to meet China`s eighth-seeded Bao Yixin/Qianxin Zhong.

Anneke Feinya/Nitya Krishinda won a spot in the semifinals after defeating compatriots Vita Marissa/Nadya Melati 21-13, 21-11.

Indonesian mixed doubles players Nova Widianto/Vita Marissa meanwhile would meet China`s fourth-seeded Chen Ju/Jin Wa in the semifinals.

In the men`s doubles event, Yohanes Rendy Sugiarto/Afiat Yuris Wirawan gained a place in the semifinals after subduing Yao Ha Ow/Wee King Tan of Malaysia 21-19, 21-17.

Yohanes Rendy Sugiarto/Afiat Yuris Wirawan will meet seventh-seeded from Japan Hiroyuki Endo/Kenichi Hayakawa. (*)