Glen Lim, 14, swimming the butterfly leg during the 400m IM event. He finished first in the 13-14 age group with a timing of 4:43.28. (Photo © Chua Kai Yun/Red Sports)

Glen Lim, 13, swimming the butterfly leg during the 400m IM event. He finished first in the 13-14 years old age group with a timing of 4:43.28. It was just shy of Zachary Tan’s national under-14 record of 4:43.15. (Photo 9 © Chua Kai Yun/Red Sports)