The Ridgeway Challenge 86 Miles (138km), The R86, is a fully supported continuous running event that starts at Ivinghoe Beacon near Tring and ends at Avebury Stone Circle. The route is 86 miles along The Ridgeway National Trail, a 5000 year old trackway through the Chiltern Hills and North Wessex Downs (along Grim’s Ditch for several miles), Barbury Castle and Liddington Castle (hill forts) en route, way marked throughout with 1929m (6328 feet) ascent 1991m (6532 feet) descent. The event hosts the British Trail Running Championships Ultra Distance.


Held under UK Athletics Rules for Competition. Permit issued by the TRA.

Fancy volunteering?

Not ready to run the race? Or just fancy volunteering instead? Our volunteers make this race and we are priviledged that we have a combination of local running clubs and individuals giving up their time to support the race. If you would like to join us at one of the aid stations or the start/finish, please hit the button below and get in touch.If you are able to volunteer for 8 hours or more, we will offer you a free place for the following year.

What's included?

  • Live Tracking
  • Transport from Tring Train Station to the registration point
  • Drop bags taken to half way and the finish
  • Nine well stocked checkpoints
  • Hot food at half way and the finish
  • Support crews, friends and family catered for at the finish
  • Medal for all finishers
  • Awards for 1st, 2nd and 3rd place female and male and age category winners
  • Runners are entered in to the British Trail Running Championships Ultra Distance