Kento Momota set a record of 11 titles in a single season as he won at the Badminton World Federation (BWF) World Tour Finals in Guanghzou.
Japan’s world number one and world champion beat Anthony Ginting of Indonesia 17-21, 21-17, 21-14 at the Tianhe Gymnasium to better the 2010 season record of 10 men’s individual titles set by Malaysia’s Lee Chong Wei.
The women’s singles crown went to home player Chen Yufei, who beat Chinese Taipei’s world number one Tai Tzu Ying 12-21, 21-12, 21-17.
Momota arrived in China with something to prove, having lost in last year’s final against home player Shi Yuqi.
The Japanese star was highly motivated to set the record straight at this year's competition, which carries total prize money of $1.5 million (£1.1 million/€1.3 million).
It looked as if the 25-year-old from Kagawa Prefecture, the 2019 BWF Male Player of the Year, might be heading for a second successive disappointment as Ginting, playing at a feverish pace, won the first game and then took seven straight points to lead 12-9 in the second.
Momota, working the corners, managed to draw level, but then found himself 12-5 down in the third before Ginting had to take a medical break to address a blister on his right foot.
It allowed Momota to exert pressure which his opponent was unable to withstand.
"It took me some time to come to terms with his speed,” Momota said.
"By the third game I knew he would be tired.
"This is the most difficult of all the tournaments, since all the top players were here, so I’m really happy to win this.
"I’m also happy that I’ve won 11 tournaments this year, it’s a great memory.
"Now I must look forward and continue to get better.”
Ginting said his only chance was to try and finish the match in two games, as he wasn’t sure of lasting the distance.
"I can’t do better than what I did today,” he said.
"The blister was painful yesterday.
"I didn’t want to give up the chance of playing the final.
"I had to win in straight games and I tried my best in the second, but I wasn’t able to control the shuttle and move him around.”
Chen, world bronze medallist this year, is now looking forward to becoming named as world number one next week having secured her seventh title in as many competitions.
Chen earned one of three home golds on the final night.
Her compatriots Chen Qing Chen and Jia Yifan beat Japan’s Maya Matsumoto and Wakana Nagahara 21-14, 21-10 in the women’s doubles final, and the mixed doubles title went to Zheng Siwei and Huang Yaqiong, who beat team mates Wang Yilyu and Huang Dongping 21-14, 21-14.
Indonesia’s Mohammad Ahsan and Hendra Steiawan overcame Japan’s Hiroyuki Endo and Yuta Watanabe 24-22, 21-19 in the men’s doubles final.