The Singapore Sports School quartet won the U-19 4x100m race in a time of 50.59s. Dunman High were second in 55.77s while St Anthony's Canossian were third in 56.96s. (Photo © Les Tan/Red Sports)

The Singapore Sports School quartet won the U-19 4x100m race in a time of 50.59s. Dunman High were second in 55.77s while St Anthony’s Canossian were third in 56.96s. (Photo 2 © Les Tan/Red Sports)