Erin Sterkenberg of South Africa has qualified for next year's postponed Tokyo 2020 Olympic Games ©IFSC

Erin Sterkenberg of South Africa has qualified for next year's postponed Tokyo 2020 Olympic Games after she won gold in the women's combined event at the International Federation of Sport Climbing (IFSC) African Championships in Cape Town.

The 17-year-old controlled the final from start to finish on her way to securing the continental title.

Sterkenburg was fastest after the speed section of the competition, clocking a time of 12.52sec.

She twice finished clear of nearest challenger and compatriot Georgiana Dorward in the bouldering and lead stages to close out a dominant display.

Sterkenburg ended the event with the perfect combined score of one point, 15 clear of Dorward in second.

Tegwen Oates completed the South African clean sweep by earning bronze on 27 points.

The winner of the men's combined final tomorrow will also earn a quota place at Tokyo 2020, where sport climbing is set to make its Olympic debut.

The Tokyo 2020 Olympics have been rescheduled for 2021 because of the coronavirus pandemic.