Caster Semenya wins women 's 800m gold at World Athletics Championships . Jamaican secures victory after Caster Semenya asked for gender test on the teenager . Yusuf Caster Semenya claims Berlin 's first -ever medal with gold in men 's 66.88m .
Caster Semenya wins women 's 800m gold at World Athletics Championships . South African secures victory after IAAF asked for gender test on the teenager . Yusuf Saad Kamel claims Bahrain 's first-ever medal with gold in men 's 1,500m .