China's world junior champion Xiang Peng was among the winners as preliminary round action began on day one of the International Table Tennis Federation Qatar Open.
He was taken the distance against France's Can Akkuzu at Doha's Aspire Dome, before coming through 11-9, 8-11, 11-5, 7-11, 11-3, 13-15, 11-6.
Other Chinese winners included Yan An and Zhou Yu who both moved a step closer towards the main draw.
Yan beat Indian's Harmeet Desai 11-6, 10-12, 13-11, 11-5, 11-9 and Yu knocked out Romania's Ovidiu Ionescu after recovering from 2-0 down, 8-11, 8-11, 11-1, 11-6, 11-5, 11-3.
Fang Bo was not successful for China, however, as he was defeated by Sweden's Truls Moregard.
The clash went to seven games before the Swede triumphed 11-4, 9-11, 11-9, 7-11, 10-12, 11-4, 12-10 in just short of an hour.
"I feel amazing, it was really nice to win this match," said Moregard.
"We both won some tough games but in the end when I managed to stay calm and make some really good points I won, I'm really happy.
"It's one of the best wins of my career so far."
Germany's Benedikt Duda recorded one of the quickest wins of the day as he beat India's Jeet Chandra in under 22 minutes, 11-3, 11-4, 11-5, 11-7.
Qatar suffered disappointment on home soil as Mohammed Abdulwahhab was seen off in straight games by Uzbekistan’s Zokhid Kenjaev, 11-4, 11-7, 11-5, 11-6.
Fahed Almughanne also lost for the host nation, going down to India's Amalraj Anthony 11-5, 11-3, 11-5, 11-7.
Japan enjoyed a good day in the women's event as Sakura Yokoi beat Stefanie Christensen of Denmark 11-4, 12-10, 11-2, 11-7.
Her compatriot Haruna Sugita accounted for Stephanie Loeuillette of France after coming from behind to win 8-11, 3-11, 11-9, 15-13, 12-10, 11-4.
Both Qatari women's players fell to defeat with Kholoud Hussain beaten by Daria Trigolos of Belarus, 11-3, 11-4, 11-3, 11-4.
Ali Maha also lost in straight games as India's Sutirtha Mukherjee won 11-4, 11-2, 11-4, 11-2.
Today's play was also marred by injury withdrawals in the men's event, including to the Czech Republic's Pavel Sirucek and Italy's Leonardo Mutti.
Preliminary matches will conclude tomorrow at the World Tour Platinum event.