Semenya Loses Testosterone Case Against IAAF In CAS Ruling

Caster Semenya has lost her case against athletics’ governing body the 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.

Last April, the IAAF issued Eligibility Regulations for Female Classification requiring female athletes with testes or naturally high concentrations of testosterone to reduce their levels sufficiently to be able to compete at distances between 400 metres and a mile.

In this landmark judgment, CAS says the IAAF’s proposed rules on athletes with “differences of sex development (DSD) are discriminatory but “such discrimination is a necessary, reasonable and proportionate means of achieving the IAAF’s aim of preserving the integrity of female athletics in the Restricted Events.”


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