The centenarian decathlon

When retired Cambridgeshire doctor Celia Duff, 71, signed herself up for the trendy fitness craze Hyrox, she discovered a new passion and talent – and became ‘Badass Gran’

To get a truly accurate benchmark of fitness, you need a time trial

WHEN KRISTIAN GKOLOMEEV WOKE UP one morning in February, the last thing he expected to do was break a world record in the pool. The Greek swimmer and four-time Olympian, who finished fifth in the 50-m

Olympic star Keely Hodgkinson is back on the track at last, says Simon Barnes

Triathlon is the greatest and toughest endurance sport in the world. After 17 years, however, I’m going through the motions. I’m 44 with dodgy knees and a plummeting VO2 max. PB-hunting is out the win

Is there any truth to the adage ‘no pain, no gain’? Steve Shrubsall heads to the lab to find out which endurance sport is the most painful when improving performance