The ramifications of this decision are likely to be felt across various levels of Australian sport, from elite competitions to grassroots community leagues. National sporting organisations, many of which are already reviewing or developing their transgender inclusion policies, will now likely face renewed pressure to solidify their stances. The costs associated with navigating these complex policy debates, both in terms of legal advice and public relations, could be significant for organisations with budgets typically measured in millions of Australian dollars. The debate is not just about participation, but also about the fundamental definition of fair play and the future of women's sport, echoing the sentiments expressed by numerous athletes and analysts in the wake of the American ruling.