And yet it's not as simple as that...as Andy Bull explains: https://www.theguardian.com/sport/2019/may/01/cas-caster-semenya-verdict-mess It is its conclusion, but it is not going to be the conclusion. Semenya’s legal team are considering whether or not to launch an appeal, and already all the many people on her side of the divide are busy picking holes in the verdict. Because, while Cas did manage to come down on one side, the summary also contained a lot of holes, quibbles and caveats. It made it clear Cas has very real doubts about the practical application of the same regulations it has decided for in principle, worrying in particular about the lack of “concrete evidence” to support the IAAF’s case at 1500m and a mile, and suggests that the IAAF defers the rule at those distances until it has more proof for it. Which means Cas is satisfied that the IAAF has proven its case in one of Semenya’s events, the 800m, but not the other, the 1500m. Cas also agrees with the IAAF that these regulations are a “living document” and will be subject to amendment, saying that if Semenya can show the regulations are too hard to comply with – if, for instance, there are too many negative side-effects – it may even change its mind about whether the IAAF’s discriminatory policy is proportionate or not. The sport demands a clear answer, the court has tried to provide it, but the truth is that even now, life is not so tidy, and the case remains a mess of irreconcilable contradictions.