By conflating gender and sex we undermine sporting competition | Tanya Aldred

Fairness is at the heart of sport and without separate categories for the sexes there would be no women in Olympic finalsWhat is fairness? In sport, everything. From childhood, we come to see the headstart in the playground race, the shove in the goalmouth, a rogue thumb on the egg (and spoon) as unjust, and quickly, loudly, “Oi!” object.The same sense of probity works its way up into professional sport. Sandpapering a cricket ball: not fair. Boxing with loaded gloves: not fair. Inte