Margaret Wambui

IAAF World Athletics Championships 2017: South Africa's Caster Semenya strides smoothly into 800m final

South Africa's double Olympic champion Caster Semenya progressed without problem to the final of the women's 800m after coasting to victory in the semi-final at the IAAF World Championships on Friday.

IAAF World Athletics Championships 2017 medal tally: USA dominate with 1-2 finish in triple jump, 400m hurdles

Here's a look at the medals tally after Day 7 of IAAF World Athletics Championships 2017 in London where Americans continued to dominate.

IAAF World Athletics Championships 2017: Caster Semenya progresses safely into women's 800m semi-finals

Semenya, a bronze medallist in the 1500m in London as she attempted an audacious double, clocked 2min 01.33sec.

Rio Olympics 2016: Caster Semenya clinches 800m gold, but easy win stokes complex gender debate

Caster Semenya won the Olympic gold in women's 800 metres, with no one even close to challenging her, but it's a result that would only stoke the complex debate over whether women with higher levels of testosterone than normal should be allowed to compete unchecked