Koo Kai Siang taking off as the gun fires to start the Men's 400m race. He finished eighth with a time of 58.29s. (Photo 1 © Stefanus Ian/Red Sports)

Koo Kai Siang taking off as the gun fires to start the Men’s 400m race. He finished eighth with a time of 58.29s. (Photo 4 © Stefanus Ian/Red Sports)