Centurion Autumn 100

OCT
17
2026
A 100 mile trail race through Oxfordshire featuring four 25 mile out and back spurs. Runners navigate the historic Ridgeway and Thames Path trails supported by 16 aid stations and full medical coverage.
Sat 17 Oct 2026
100 miles

Always double-check with the organizer's website! This page may contain affiliate links.

Autumn 100

The Autumn 100 is a continuous trail race that covers a total distance of 100 miles. The event is staged in the twinned villages of Goring and Streatley in Oxfordshire. The course is designed in the shape of a cross, consisting of four distinct out and back spurs, each measuring 25 miles. This layout utilizes sections of both the Ridgeway and the Thames Path National Trails.

Participants navigate four specific legs starting and returning to the central hub in Goring:

  • Leg 1: An out and back section on the Thames Path to Little Wittenham.
  • Leg 2: A section along the Ridgeway out to Swyncombe Farm.
  • Leg 3: A western route on the Ridgeway toward Chain Hill.
  • Leg 4: A final stretch on the Thames Path toward Reading.

The environment features a mix of flat and fast sections, particularly during dry weather conditions. Runners must be prepared for the typical British autumn climate, which may include low temperatures, wind, rain, and approximately 13 hours of darkness. The trail is marked with course markings and existing National Trail waymarkers.

Support for participants includes 16 stocked aid stations and full medical coverage throughout the duration of the event. The race is held under a UK Athletics Permit through the Trail Running Association. The minimum age for entry is 20 years old. Visit the organization's website for the most recent information.

100 mi
Autumn 100
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.