The Court of Arbitration for Sport has rejected Caster Semenya’s appeal over IAAF testosterone regulations.
The Court of Arbitration for Sport (Cas) rejected the South African’s challenge against the IAAF’s new rules.
But Cas said it had “serious concerns as to the future practical application” of the regulations.
Olympic 800m champion Semenya, 28, said in response to the ruling that the IAAF “have always targeted me specifically”.
Now she – and other athletes with differences of sexual development (DSD) – must either take medication in order to compete in track events from 400m to the mile, or change to another distance.
What gender will this ruling affect?