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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.


The event is organised by and permitted by the Trail Running Association.  The race permit number for 2022 will be published here once issued. Held under UK Athletics Rules for Competition.

What's included?

  • Live Tracking
  • Free transport from Tring Train Station to the registration point
  • Free transport to Swindon Train Station
  • Drop bags taken to half way and the finish
  • Nine well stocked checkpoints
  • Hot food at half way and the finish
  • Checkpoint transport for retiring runners
  • Optional high quality re-usable medal
  • Support crews and friends and family catered for at the finish
  • 12:00 starters receive 1st, 2nd or 3rd place medals
  • Branded photo backdrop
  • 12:00 runners are entered in to the British Trail Running Championships Ultra Distance
  • Two start windows to cater for mixed abilities.

Entry Info and Prices


You can find information here about qualifying, choosing a start time and entry pricing.


The event provides selected hotel pickups and train station shuttles!

Event Info


Maps and checkpoint locations are contained within these pages.


You'll enjoy the event more once you've read this information and checked-out the interactive map.

About the TRA


The TRA is an associate member of UK Athletics (UKA). Through this association with UKA, the TRA is responsible for the management of the British Trail Running Championships.