Caster Semenya became the first South African woman in 64 years to win Olympic gold in athletics on Saturday, running a personal best time of 1:55.28 in the 800 metres final.The South African let Burundi's Francine Niyonsaba lead the race up to the 600-metre mark before pulling ahead with an injection of pace to take the gold. Niyonsaba finished in 1:56.49 to claim the silver, her country's second medal in any sport at the Olympics, with Kenya's Margaret Wambui wining bronze in 1:56.89.
