Caster Semenya loses testosterone case against the IAAF in CAS ruling

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JOHANNESBURG, South Africa


South African middle-distance runner and 2016 Olympic gold medalist Caster Semenya has lost her case against athletics’ governing body the International Association of Athletics Federations (IAAF) in the Court of Arbitration for Sport (CAS).

The decision announced by CAS on Wednesday, means that the double Olympic champion will be forced to reduce her natural levels of testerone to compete in distances from 400m to the mile.

The panel of three CAS judges ruled 2-1 that the International Association of Athletics Federations (IAAF) regulations are necessary to ensure fair competition.