The Barry 40 is a 40-mile ultramarathon which takes place annually in Barry, Vale of Glamorgan, Wales, claiming to be the longest running annual ultramarathon in the UK.
The men's World Record of 3:45:07 was set by Ollie Garrod (Belgrave Harriers) in 2023.
In addition two Greek National records were set by George Dayantis in 2011.
Seventy-seven-year-old Geoff Oliver set new world bests at 30 miles and 50 km in the M75-79 age group in 2011 bringing his total to five world bests set at the Barry 40 mile race.
The race takes place at Jenner Park Stadium.