Trail Running Races
Friendly and challenging trail running races, set in the beautiful English countryside.
Our Trail Running Races
Ranging from 10K to 100K+ ultra marathons, all our races take place on the trails in the beautiful English countryside.
North Chilterns 50K
Experience the stunning North Chiltern trails, with flowing ridgeline running and views that stretch for miles.
Autumn Time Trial Series
Three friendly evening time trials through the Chilterns during autumn 2026.
Runaway Racing Invitational 10K
Our end of season 10K trail running championship event at Wendover Woods.
Chiltern Ridge Classic 50K
An iconic 50K ultra marathon in the Chiltern Hills, traversing the stunning ridgeline trails between Ivinghoe Beacon & Whiteleaf.
The Ridgeway Challenge
An 86-mile (139km) point-to-point trail running race along the entire length of The Ridgeway National Trail.
The Ridgeway Chase
The Ridgeway Chase is a 60km point-to-point ultramarathon following the historic Ridgeway National Trail.
Dunstable Downs Half Marathon
Take on a scenic trail half marathon set in the heart of the National Trust’s Dunstable Downs estate.
Chiltern Ridge Half Marathon
An epic half marathon along The Ridgeway National Trail between Wendover & Princes Risborough in Buckinghamshire.
Race The Light at Wendover Woods
Join us for an evening of trail running at Wendover Woods, raising funds for the amazing Chilterns Neuro Centre charity.
Suffolk Coastal Path 50K
Run the stunning Suffolk Coastal Path from Lowestoft to Aldeburgh.
Chiltern Hills 100K
A 100K ultra marathon along the best and most loved trails within the Chiltern Hills.
Chiltern Ridge Winter 50K
Experience the autumn/winter edition of our classic Chiltern Ridge race, following a scenic single-loop 50K course starting and finishing in Berkhamsted.
Looking for a race we've run before? See our races on ice
Find the right race
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50K ultra marathons
Four trail 50Ks with 9-hour time limits. The perfect first ultra.
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100K ultra marathons
The Chiltern Hills 100K and the 139km Ridgeway Challenge.
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Chilterns trail races
Every race we put on in the Chiltern Hills, from 8K to 139km.
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Ultras near London
Ultras and trail races a short train ride from London.
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What a lovely first ultra! Beautiful views, well organised, a well marked course with really sweet little orange ribbons. Super friendly supportive marshalls and well stocked aid stations. Just loved it!!
Georgina
Greensand Country 50km, 2022
Brilliant event, very hilly at the end, but a really great course and exceptionally well marshalled - can't wait to sign up next year.
Lisa
Dunstable Downs Half, 2023
Keep up with the pace
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