"I nearly always do after a tough session," cackled 23-year-old Macey, grinning manically. "Oh yeah, big time. I've just done three lots of 300 metres and I'm not going to tell you what times I ran because I'll scare the other sprinters, never mind the decathletes. But it was superb. I'm well chuffed, bearing in mind I've just brought up everything I've eaten over the last three days. It was 25 minutes before I could get up to walk off the track.