The 20-year-old swimmer clocked four minutes 30.48 seconds to better the national record of 4:30.85 set by Sebastian Soo at the Asean School Sports Championship in July.

He also shattered the 16-year-old Sukma record of 4:34.14 held by Die Uang Manggan of Sarawak in the 2002 edition in Sabah.

“I was only aiming to improve on my personal best of 4:42.49 and did not expect to set the national record.

“For Sukma, I still have the men’s 200m butterfly and I am going for the gold,” he said.

The 400m individual medley silver medal went to Sebastian Soon of Federal Territory in 4:30.79 and Arvin Shaun Chalal Singh (4:33.01) of Terengganu took the bronze.

The swimming event which began today saw Selangor raked in four gold medals out of eight in competition.

Selangor bagged the gold medals via Asmalia Filzati Redzuan in the women’s 100m freestyle, Ng Jing Fu (men’s 100m breaststroke), Jordan Yip Zhu Ern (men’s 50m backstroke) and Nadia Adrianna Redza Goh (women’s 400m individual medley).