Results on the fourth day of the badminton world championships in Jakarta on Thursday (x denotes seeded player):

Men's singles

Kento Momota (JPN x4) bt Nguyen Tien Minh (VIE) 21-15, 21-16.

Chen Long (CHN x1) bt Tanongsak Saensomboonsuk (THA) 21-17, 21-18.

Jan O. Jorgensen (DEN x2) bt Son Wan Ho (KOR x9) 21-19, 21-11.

Wei Nan (HKG) bt Zulfadli Zulkiffli (MAS) 21-15, 21-9.

Lin Dan (CHN x5) bt Hans-Kristian Vittinghus (DEN x14) 21-9, 21-13.

Lee Chong Wei (MAS) bt Wang Zhengming (CHN x8) 21-17, 21-19.

Viktor Axelsen (DEN x7) bt H.S. Prannoy (INA x11) 21-16, 19-21, 21-18.

Hu Yun (HKG x13) bt Srikanth Kidambi (INA x3) 14-21, 21-17, 23-21. 

Women's singles

Carolina Marin (ESP x1) bt Pai Yu Po (TPE) 21-11, 18-21, 21-17.

P.V. Sindhu (IND x11) bt Li Xuerui (CHN x3) 21-17, 14-21, 21-17.

Sung Ji Hyun (KOR x8) bt Porntip Buranaprasertsuk (THA) 21-9, 21-16.

Saina Nehwal (IND x2) bt Sayaka Takahashi (JPN x14) 21-18, 21-14.

Wang Shixian (CHN x7) bt Busanan Ongbumrungpan (THA x15) 24-22, 21-11.

Wang Yihan (CHN x6) bt Bae Yeon Ju (KOR x10) 17-21, 21-18, 21-8. 

Tai Tzu Ying (TPE x4) bt Michelle Li (CAN x12) 21-15, 21-19.

Lindaweni Fanetri (INA) bt Ratchanok Intanon (THA x5) 24-26, 21-10, 5-8 RETIRED

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