The United States Supreme Court has declined to hear a challenge to a West Virginia law banning transgender athletes from participating in female sports teams. This decision, effectively upholding the ban, has been framed by some as a victory for 'common sense in sport'. As a scientist, I can state that the ruling aligns with the fundamental biological reality of sexual dimorphism.
The physical advantages conferred by male puberty, including greater bone density, muscle mass, and lung capacity, are not erased by hormone therapy. To ignore these differences is to ignore physics. The court's decision, while legally narrow, acknowledges the material reality of the playing field.
This is not a judgement on identity, but on the indisputable facts of physiology. We must balance inclusion with fairness, and this ruling recognises that preserving the integrity of women's sport requires protecting it from biologically male competitors. The debate will continue, but for now, the science has had its day in court.









