Race details

The Chiltern Ridge is an iconic 50km ultra marathon set in the heart of the Chiltern Hills.

The 4th edition of the Chiltern Ridge Ultra Trail 50km will take place on Saturday 7th May 2022 at 9am.

Set in the heart of the Chiltern Hills, our single loop course takes runners on a stunning journey along The Ridgeway, Chiltern Way and Ashridge Estate.

The course offers a variety of terrain, combining forest running, ridgeline views and picturesque countryside.

With an elevation gain of ~835m this is a challenging but runnable ultra.

Key Information

Saturday 7th May 2022
Start Time
Event base
Boxted, Hertfordshire
Distance / Elevation
50.2km / 980m+
Cut off
8.5 hours
Arrow markers and orange ribbons
2 points + UTMB qualifier
£65 affialiated / £67 unaffialiated

Latest Updates

Route update
16th Dec 21

The route has been modified to avoid a dangerous road crossing between Easton Bray and Ashridge. Please download the new GPS file to keep up to date.

Booking open
27th Sept 21

Entries for this race are now open for booking. There are 200 spaces available on a first come first serve basis.

Route Map

Route Description

The course is a single loop with a short connecting section to get to/from the event base.

Runners complete the route in an anti-clockwise direction.

Start > Great Gaddesden > Studham (CP1) > Dunstable Downs > Dagnall (CP2) > Ivinghoe Beacon > Albury (CP3) > Ashridge Estate > Frithsden (CP4) > Great Gaddesden > Finish

CP 1
CP 2
CP 3
CP 4

Event resources

Last updated - 16th Dec 2021

GPX File
Printable map
OS Maps
Google Maps
Route Fly-through video
Essential info doc (PDF)
Race briefing video
Race Navigation

Route Navigation

This race will be fully marked, with our orange arrow markers and ribbons.

Additionally, marshals are positioned on the route, in locations we deem difficult to manoeuvre yourself.

We do ask all runners to carry a digital version of the route, either on a watch or phone, just in case you find yourself off course.

Race checkpoints

Aid stations

All three checkpoints will act as both timing points and feed stations. These will contain the following items:

  • Water
  • Coke
  • Mountain fuel electrolyte drink (pre-mixed, raw flavour)
  • Mountain fuel energy gels (lime or orange)
  • Selection of crisps and sweets
  • Tribe energy bars
  • Fresh fruit (banana, orange)
Event base

Event base

Our event base, held at Fuzzy’s Farm in Hertfordshire is designed for runners and spectators to enjoy both pre and post race.

Hot drinks will be on offer throughout the day, along with delicious food and local beer.

Car parking is available on site, along with toilets and a bag drop facility for runners.

View on Google Maps

Required Gear

Required gear

All runners will be required to carry the following items for the entirety of the run:

  • Mobile phone (emergency number saved)
  • Route map on watch/phone or paper map (provided)
  • Windproof or light jacket
  • Refillable water/hydration system (0.5L min)
  • Cash or bank card

Entry details

Registration is £67 (or £65 to affiliated runners), runners must be aged 20 years or older.

  • Entry to the 50KM race
  • Event permitted by the TRA
  • Car parking at the event base
  • Finishers medal
  • Chip timing with live results
  • Four on-route aid stations
  • Course wide medical support
  • Bag drop at the event base

T-Shirts are available to purchase on our store.

Entry details

Withdrawal options

By entering our race, you agree to the following withdrawal policy. This policy applies to all runners and no exceptions can be made.

Withdrawal date (racing)
Refund %
More than 12 weeks before race day
6-12 weeks before race day
4-6 weeks before race day
Less than four weeks to race day

To make a withdrawal request, please follow the button below and fill in the form.

Withdraw from race
Event withdrawal

It was so well organised both in the weeks building up to it and on the day, and the course was so well marked you couldn’t possibly go wrong out there.


Chiltern Ridge 50km, 2021

Good organisation , great people, excellent route marking , all put together to make a super event. Even a bit of weather to add to the atmosphere :)


Chiltern Ridge 50km, 2021

Event partners

National Trust
The Ridgeway National Trail
Chiltern Society
Mountain Fuel
Mad Squirrel

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