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Chiltern Ridge Ultra Trail 50KM

This event is sold out.

The third Chiltern Ridge Ultra Trail 50km will take place on Saturday 8th May 2021.

Our 50km route is set in the heart of the Chiltern Hills and follows the iconic Ridgeway National Trail for a large part of the route.

This is a varied ultra marathon that combines forest running, ridge-line views and plenty of picturesque countryside villages and footpaths.

With an elevation gain of ~990m this is a challenging but runnable ultra.

  • Race date

    Saturday 8th May 2021
    0800-0900 start window

  • Event base

    Aston Hill, Wendover, HP22 5NQ

  • Distance


  • Elevation change


  • Cut-off

    No finishers after 17:00

  • Aid stations

    3 on route

  • UTMB/ITRA points

    2 points

  • Total runners


Race resources

Event summary

A PDF with a brief summary of everything you need to know.

GPX Route details

Please use any of the following platforms to follow or download the race route.

(right click then 'Save Link As')

  • Ordnance Survey Maps - View
  • Garmin Connect - View
  • ViewRanger - View
  • Komoot - View

Route maps

To view or print the full route map, please use the PDF documents below. This map will also be given to you upon registration on race day and it is mandatory to carry it with you during the run.

COVID-19 plan

Our COVID-19 protocols for runners can be found below. All competitors must read this prior to the event.

Quick links

Route description
Route/elevation maps
Aid stations
Entry details
Mandatory Kit
Getting there

Route description

The race starts at the top of Aston Hill (adjacent to Wendover Woods) with a sweeping woodland descent before climbing up to Hastoe and joining the Ridgeway National Trail.

The route follows The Ridgeway to the village of Aldbury and the first pitstop at 10.6km. The next section is both the most beautiful and hilly as runners complete an out and back to Ivinghoe Beacon.

By the time runners return to Aldbury and start retracing their steps to Hastoe, the halfway point is long gone and the race turns flatter and faster on a varied section through Cholesbury and into Swan Bottom and the third and final checkpoint.

From this checkpoint at 38km runners follow the Chiltern Way until it rejoins The Ridgeway to the impressive Pavis Wood. With just 4km to go the end is in sight, but there is one final climb to test your endurance before you can relax with a medal around your neck.

The course record is set by Rory Pond in 04:14:56.

Route map & elevation

To view/download this route, please visit OS Maps

Aid stations

There will be three aid stations on route, these are at - 11.5km, 26.3km & 40.3km.

The aid stations will contain the following:

  • Water
  • Electrolyte drink
  • Coke
  • Fresh fruit
  • Sweets
  • Crisps

There are toilets at the start/finish, and all three checkpoints.

We will not be providing bottles, so it is essential you have a refillable bottle or cup with you.

Ultra marathon volunteers

Entry details

Registration to the ultra is £62 (or £60 to attached runners) and includes the following:

  • Entry to the race
  • Free car parking at event base
  • Unique finishers medal
  • Timing wristband
  • 3 aid stations
  • Medical support
  • Bag drop at event base


Unique t-shirts are available to purchase on our shop


We do not allow transfers or deferrals on this event.


Runners will receive a 70% refund if they voluntarily withdraw before 10th April 2021 — Refund applications are now closed.

Mandatory Kit

The following items are mandatory:

  • Mobile phone
  • Refillable Water/hydration system (min 500ml)
  • Waterproof or windproof jacket
  • Additional dry layer (stored for emergencies)
  • Basic first-aid kit (Plasters, antiseptic wipes, bandage, foil/safety blanket)
  • Map (provided)
  • Cash (£20)
  • Face covering & antibacterial hand gel

Please bring a reusable cup for use at the aid stations.


All runners will receive a unique finishers medal.

There will be prizes awarded to the race winners, V40+ category and a team prize (first team to have three finishers).

Race rules

To view a list of our race rules please click here.

Getting there

The start/finish and event base is located at:
Hill Farm, Aston Hill, Halton, Aylesbury, HP22 5NQ.

Click here to view on Google Maps

Hill Farm has camping facilities which can be booked via their website.

The event base is a 10 minutes drive from Wendover itself, where there are hotels, B&B's and a train station.

If you are travelling via train on the morning of the race, it's best to travel to Tring as typically this line operates earlier on a weekend. You will need to pre arrange a taxi* from the station to the start.

*Arrange the booking to "Aston Hill Bike Park" as this is the closest recognisable address next to our field.

Useful information

If you have a question please email [email protected]

Supporting the Chiltern Society

This year we're proud to be supporting the Chiltern Society, with £1 from every runner’s entrant fee being donated.

Click below to read more about how we're working together.

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