Lord Coe, the president of World Athletics, has expressed his enthusiasm for the UK Supreme Court's ruling on the legal definition of a woman based on biological sex. He emphasizes that World Athletics has always been dedicated to safeguarding the integrity of women's sport. The introduction of a swab test for elite athletes in the women's category has been well-received. Several sports have implemented bans or eligibility criteria for transgender women in women's events. Different sports bodies have diverse approaches, and the implications for grassroots sports are being considered.