The Grand Chamber of the European Court on Thursday upheld a 2023 ruling that double 800 metres Olympic champion Caster Semenya’s appeal to a Swiss Federal Tribunal against regulations that barred her from competing had not been properly heard. Semenya is appealing against World Athletics regulations that female athletes with differences in sexual development (DSDs) medically reduce their testosterone levels. The verdict of the Grand Chamber, part of the European Court of Human Rights, does not