“I don’t want to bash the heptathlon, which is an amazing event,” says Becca Peter, the event’s athlete co-ordinator. “But it is less demanding than the decathlon, which is widely seen as finding the world’s best all-round athlete. What kind of message does that send to women and girls? In effect, they are being told they can’t be the world’s greatest athlete, that they can’t do as many events as men. And that isn’t right.”