This event is really good, only in it's 2nd year. It's 50 mile race but also has a lite version. It's laps of a 5 mile course in Epping Forest and the Harriers are a great club. https://www.orionharriers.com/ultra/
Ah ok , There's the lite version which is less than 50 miles and what you can manage/feel like on the day.
5 mile loop as many times as you want but not ten times.
This event is really good, only in it's 2nd year. It's 50 mile race but also has a lite version. It's laps of a 5 mile course in Epping Forest and the Harriers are a great club.
https://www.orionharriers.com/ultra/