Calvin Quek (#113) of NTU claimed the Men's 400m gold medal after stopping the clock at 52.37s in the final. (Photo 1 © Iman Hashim/Red Sports)

Calvin Quek (#113) of NTU claimed the Men’s 400m gold medal after stopping the clock at 52.37s in the final. (Photo 7 © Iman Hashim/Red Sports)