Dylan Koo reacting as he looked at the results board, he narrowly missed out on a podium finish after clocking in 24.77 at the men's 50m butterfly final on the first day of the 13th Singapore National Swimming Championship. (Photo © Stefanus Ian/Red Sports)

Dylan Koo reacting as he looked at the results board. He narrowly missed out on a podium finish after clocking 24.77s in the men’s 50m butterfly final on the first day of the 13th Singapore National Swimming Championships. (Photo 5 © Stefanus Ian/Red Sports)