The UK’s Supreme Court has ruled that “man”, “woman” and “sex” in the Equality Act 2010 refer to sex, not self-ID or paperwork (gender-recognition certificates). This agreed with our legal interpretation. We have published new guidance and are in the process of updating our publications to reflect the judgment. We are also working to provide answers to the questions we're hearing from supporters and the media. We will publish these as soon as possible.

Fair Game: biology, fairness and transgender athletes in women’s sports

Jon Pike, Emma Hilton, and Leslie A. Howe lay out the physical advantages of athletes who are born male, and reject gender-based criteria for competition, proposing instead a solution that will allow all athletes to compete fairly.