Nuytinck, ranked 112 in the world, overcame Russia's 101 ranked Kirill Skachkov in straight sets, albeit four tight ones.

He won 11-9, 13-11, 12-10, 12-10 to set-up a main draw clash with Jung Youngsik of South Korea.

Chinese-born Zhai, the under-21 winner in Kuwait last year, beat another Russian in world number 94 Alexey Liventsov, 11-7, 9-11, 12-10, 11-7, 11-7.

There was some success for the world's largest nation, however, as world number 108 Mikhail Paikov beat Taiwan's 72nd ranked Chiang Hung-Chieh, 11-7, 11-6, 9-11, 11-6, 17-15.

Other winners today included French rising star Simon Gauzy, the world number 24 who defeated Singapore’s Chen Feng 8-11, 11-9, 11-9, 7-11, 13-11, and Portugal’s 20th ranked Tiago Apolonia.

Apalonia beat Egypt’s El-Sayed Lashin 11-9, 11-4, 9-11, 11-9, 11-8 and will face Japan's Jun Mizutani in a mouth-watering first round clash tomorrow.

Gauzy will be up against 39-year-old Belorussian veteran Vladimir Samsonov.

Qualification also ended today in the women's singles, where Samsonov's compatriot Viktoria Pavlovich impressed in defending her way to a gruelling victory over Japan's 58th ranked Hina Hayata, 12-14, 15-13, 3-11, 11-8, 3-11, 11-7, 11-8.

“Today, it was just fighting, fighting and fighting, I don’t feel so safe and secure with my defence as before”, said the victorious world number 76.

“I lost the sixth game quite comfortably, at the start of the seventh I just said to myself put the ball on the table.

"It was a really difficult match because Hina kept changing the length of her top spin attacks, some short, some long.”

Another shock result came in an all-Japanese duel where world number 232 Saki Shibata overcame compatriot Hitomi Sato, ranked 33rd, in four straight games, 9-11, 8-11, 7-11, 10-12.

All the top-seeded players, including the dominant Chinese, will enter proceedings tomorrow.