Quah Zheng Wen in the 400m individual medley final. He took home the gold with a 4:23.50 timing. (Photo 1 © Matthew Lau/Red Sports)

Quah Zheng Wen in the 400m individual medley final. He took home the gold with a 4:23.50 timing. (Photo 21 © Matthew Lau/Red Sports)