The race starts and ends at Ashton Court Mansion and runs along the Community Forest Path around Bristol.
The race must be self-navigated but Garmin devices are available to hire on the day. There is mandatory kit which will be checked before the start of the race.
The race is chipped at the checkpoints and the finish line. Partial cut-off times will apply for the different distance categories (30 and 45miles) at each checkpoint. The 45mile category has a cut-off of 12 hours and the 30mile category has a cut-off of 9 hours, both have catered and raw (water only) options.
All checkpoints include gels, drinks and snacks. All race finishers will receive a goodie bag, medal and certificate.
Navigational assistance will be provided by non-competitive participants, called Time Lords, who depart checkpoints at specific times.
There is an option to run for a charity.