On 25 August 2020, the Swiss Supreme Court (Swiss Federal Tribunal, SFT) rendered one of its most eagerly awaited decisions of 2020, in the matter of Caster Semenya versus World Athletics following an award of the Court of Arbitration for Sport (CAS). In short, the issue at stake before the CAS was the validity of the World Athletics eligibility rules for Athletes with Differences of Sex Development (DSD Regulation). After the CAS upheld their validity in an award of 30 April 2019, Caster Semenya and the South African Athletics Federation filed an application to set aside the award before the Swiss Supreme Court. The SFT decision, which rejects the application, was made public along with a press release on 8 September 2020. The goal of this short article is to highlight some key extracts of the SFT decision and some features of the case that will be relevant in its further assessment by scholars and the media.