Wang clocked a time of 58.24sec in the heats to slice 0.04 seconds off the previous best mark set by Kazakhstan’s Polyakov Vladislav at the 2009 edition of the Games in Vietnam’s capital Hanoi.

The 19-year-old, who was given a warning penalty by the Chinese Swimming Association in March 2016 after failing a drugs test for clenbuterol, then improved it further in the final by registering a time of 57.02.

South Korea occupied the two other podium positions with Kim Jaeyoun second in 58.54 and Moon Jaekwon third in 58.66.

Thailand’s Jenjira Srisa-Ard also produced a Games record-breaking performance today to win the women’s 50m freestyle gold medal.

The 22-year-old clocked a time of 24.71 to better the Games record mark of 25.13 set by compatriot Junkrajang Natthanan at Hanoi 2009.

China’s Lao Lihui finished second in 24.99, while Srisa-Ard’s fellow countrywoman Natthanan Junkrajang came third in 25.38.

Two further Games records came in the 200m individual medley finals.

The men’s event saw China’s Qin Haiyang post a time of 1:55.20 to take 1.41 seconds off that set by compatriot Feilian Mao at Incheon 2013.

Chinese Taipei’s An Ting-Yao was the runner-up in 1:56.90, followed by Vietnam’s Tran Duy Khoi in 1:57.60. 

In the women's equivalent, Vietnam’s Nguyen Thi Anh Vien beat her own mark of 2:10.05, set at Incheon 2013, with a time of 2:09.78.

China’s Zhang Chenyao was the silver medallist in 2:12.67 with compatriot Qian Xinan taking the bronze in 2:13.93. 

Among today’s other solo gold medallists was South Korea’s Kim Daleun, the winner of the women’s 100m breaststroke title in 1:07.51.

She was followed in the standings by two swimmers from Hong Kong with Ip Rainbow second in 1:07.84 and Kan Cheuk Tung Natalie third in 1:09.19. 

In the men’s 50m freestyle, Kazakhstan’s Adil Kaskabay came out on top with a time of 21.88.

Uzbekistan’s Khurshidjon Tursunov was his closest challenger in 22.04 with Chinese Taipei’s Lin Chien-Liang rounding out the podium in 22.26.

Games records continued to tumble in the 4x50m medley relay finals with Hong Kong winning the women’s event in 1:48.79 to improve on the mark of 1:50.17 set by South Korea at Incheon 2013.

China and Thailand shared the silver medal after both their quartets finished in 1:51.64.

In the men’s event, South Korea prevailed in a time of 1:35.28 to slice 0.72 seconds off the previous mark set by China at Incheon 2013.

China had to settle for the silver medal on this occasion in 1:35.91, while Kazakhstan came away with the bronze in 1:37.01.

Short course swimming action is due to continue tomorrow.

China lead the medal standings after the first day of competition with two golds, four silvers and one bronze.

South Korea are second with two golds, one silver and one bronze, while Hong Kong and Thailand are tied for third with one gold, one silver and one bronze each.