Wang Yihan avenged her Olympic defeat by beating Li Xuerui to gold in the women's badminton singles at the Asian Games on Sunday.
The 26-year-old lost to world number one Li in the final at London 2012, before gaining a degree of revenge when she claimed the Badminton Asia Championships crown against her rival last year.
The Chinese duo had already tasted glory as part of the victorious women's team at these Games, and it looked as though the individual gold medal was destined to be draped around the neck of Li at the Gyeyang Gymnasium in Incheon on Sunday when she claimed a convincing 21-11 win in the opening game.
However, Wang battled back to edge the second game 21-17 and completed the turnaround with a thumping 21-7 victory in the third to seal top spot on the podium.
Li had enjoyed a fine season on the BWF calendar, with victories in Malaysia, Japan and Indonesia, although she did suffer defeat to Spain's Carolina Marin in the final of the BWF World Championships at the end of last month.
Marin had knocked out Wang in the third round of that competition.
Runaway medal table leaders China endured mixed fortunes in the mixed doubles semi-finals, winning one and losing the other - both against Indonesia.
There was further glory for China in the beach volleyball, which saw Ma Yuanyuan and Xia Xinyi defeat Varapatsom Radarong and Tanarattha Udomchavee to take gold, while Wang Zhen and Liu Xiuzhi were triumphant in the men's and women's 20km race walks respectively.
It was shaping up to be a fruitful day for South Korea, who picked up three of the four gold medals on offer in the archery - China winning the other.
The host nation also claimed gold in the women's trios bowling, while cyclist Jang Kyung-gu crossed the finish line first in the men's road race.
Thailand dominated the Sepaktakraw events, beating South Korea and Myanmar to win the men's and women's finals respectivley.
Elsewhere, Qatar secured gold in the equestrian jumping team event.