Runaway Racing

Race details

Next edition - 5th April 2025

A 100K ultra marathon along the best and most loved trails within the Chiltern Hills.

Our debut 100K event will take place in Spring 2025 on a route that combines the most loved trails and landmarks within the central Chiltern Hills.

The event base and exact route are still to be confirmed, however a priliminary course can be viewed below.


Key Information

Saturday 5th April 2025
Start Time
06:00 (TBC)
100K / 2000m+
Event Base
Wendover, Chiltern Hills
Time Limit
18 hours
Max Runners
Minimum Age
UTMB Index
UTMB World Series Index Race
TRA Permit No. TBC.
Race held under UKA rules.
Opening spring/summer 2024

Route Map

Event partners

National Trust
The Ridgeway National Trail
Chiltern Society
Ugoku Projects
UTMB World Series
Trail Running Association
Runaway Racing Trig Point Illustration

Our trail running races

Chiltern Hills Invitational 9.75km -10th December 2023
Tewinbury 10K 10km -7th April 2024
Hughenden Trail 10K 10K -13th April 2024
Chiltern Ridge Ultra 50K 50km -27th April 2024
Greensand Country 50K 50km -26th May 2024
Chiltern Ridge Half Marathon 21.2km -16th June 2024
Dunstable Downs Half Marathon 21.2km -14th July 2024
Suffolk Coastal Path 50K 50km -14th September 2024
North Chilterns 50K 50km -13th October 2024
Chiltern Hills 100K 100K -5th April 2025

Past results & photos

Not sure which race to choose, check out our past event results and photos.

Results & photos