
Credit: By Tab59 from Düsseldorf, Allemagne. CC BY-SA 2.0 via Wikimedia Commons.
When Caster Semenya eased to victory in the women's Olympic 800 metres final in Rio de Janeiro on August 20 2016, the debate on hyperandrogenism was reopened. Semenya burst onto the world scene as an 18-year-old phenomenon at the World Athletics Championships in 2009, comfortably winning the 800 metres.