Seventeen-year-old Marlon Kayster from Porterville has become South Africa’s fastest under-18 sprinter after clocking a world-leading 10.31 seconds in the 100m, earning selection for competitions in Europe and the United States.

Seventeen-year-old Marlon Kayster from Porterville has become South Africa’s fastest under-18 sprinter after clocking a world-leading 10.31 seconds in the 100m, earning selection…

At just 17, Marlon Kayster from Porterville has set a new benchmark as South Africa's fastest under-18 sprinter, clocking 10.31 seconds in the 100m and earning spots in…