'When I realised a 30-minute run was only the warm-up, I feared the worst'

Paul Fennessy, a 42-year-old man from Ireland, recently completed a grueling 100-mile ultra-marathon. Despite his initial fears, Fennessy managed to finish the race in an impressive 24 hours and 30 minutes.

Fennessy's achievement is particularly remarkable considering that he only started running three years ago and had never attempted a distance longer than a marathon before.