Liang Jingkun was crowned the men's singles champion for the "Tokyo 2020 Preparation for China Table Tennis Team - Olympic Simulation Games" after a six-set win over Wang Chuqin.
The world number eight claimed victory by a score of 9-11, 12-10, 11-8, 11-6, 7-11, 12-10 at the test event in Lingshui City in Hainan Province on August 14.
Wang Chuqin had the upper hand in the first set, but was unable to reply in three consecutive sets - making every set from then a must-win.
He brought the score back to 3-2 after a convincing 11-7 fifth set, but lost out in a second tiebreaker set in the sixth, giving Liang the win.
World number one Fan Zhendong was third on the podium after Xu Chenhao withdrew from their final tie due to injury.
World number three Sun Yingsha defeated world number five Wang Manyu in a thrilling seven sets, despite looking likely to win in a whitewash after three sets on August 13.
Sun won by a score of 12-10, 11-9, 14-12, 6-11, 8-11, 13-15, 11-6.
After a hard-fought third set win, Sun was eventually turned over in set four, which Wang won 11-6.
Wang later brought the score level with a nail-biting 15-13 tiebreaker set, but the final set was relatively straightforward - with Sun winning by five points to seal the title.
"Today's game was very exciting," said Sun.
"Both of us played at our best level, we are very familiar with each other.
"I felt that the game would definitely be very tough, prepared for the difficulties well; whether you in the lead or fall behind, you will go all out to fight for each point."
Wang Yidi finished third in another seven-set match, defeating world number one Chen Meng.
The Chinese Table Tennis Association decided to host the event in the absence of international table tennis competitions and the postponement of the Tokyo 2020 Olympics due to the COVID-19 pandemic.