The Copthorne Heavy

14th Aug 2026

Approved TRA permit no.8536

The Copthorne Heavy is our take on the classic backyard ultra format, simple in theory, increasingly brutal in practice. Starting at 6:00pm on Friday, runners set off to complete one full Copthorne loop every three hours. Finish the loop inside the time limit and you earn the right to start the next one. Any spare time is yours to eat, rest and sort your kit before the bell goes again. Then, exactly three hours later, you do it all over again. The Format One Copthorne loop every 3 hours Complete the loop within the time limit to continue Any time remaining in the 3-hour window is your recovery time Miss the cutoff and your race is over The event runs for up to 48 hours Maximum of 16 loops