Full 50km
Sat 27 Sep 2025 Henley-on-Thames, Buckinghamshire, UK

Chiltern 50 Ultra Challenge | Full 50km

The full 50K route of the Chiltern 50 Ultra Challenge starts from basecamp in Henley on a loop via Greys Court, the Ridgeway, Shakespeare's Way, The Chilterns and Hambleden Village to a party finish!

Charity places
  • Sat 27 Sep 2025
Henley Showground, Henley-on-Thames

Full 50km

07:00

Age 18 & over

£139

  • 50 km trail running + 920 m ascent

Event overview

At the basecamp in Henley, there’s a Saturday night celebration BBQ, bar and entertainment, with extensive on-site camping and parking options.

These routes with real variety and wonderful scenery and are easily accessible from London. You’ll get full support and hospitality, and with a 10km and 25km loop also available, there’s a Chiltern Ultra Challenge® for everyone!

The Ultra Challenge Experience

This challenge is part of the UK's number one series of trek and trails runs for a wide range of ages, fitness and experience levels.

Choose your challenge and do it at your pace. The level of support enables you to go further, whilst enjoying the great outdoors, camaraderie, and the challenge. There are marquee rest stops, lots of food and drink, medical and massage teams, with a fully signed route to guide you.

A big finish-line celebration awaits with an amazing sense of achievement and once the aches subside you’ll feel energised, up for more of life’s real challenges – and, maybe, personal horizons redefined.

This event is part of Chiltern 50 Ultra Challenge.

  • Event village
  • Families
  • Newcomers
  • Traders at event

Your challenge, your way

Whether you’re a walker and new to challenge events, an experienced trekker, a marathon enthusiast upping the distance, or a seasoned ultra runner after UTMB points – there’s an Ultra Challenge® for you! Walk, Jog, or Run at your pace, as an Individual or a Team, for a charity of your choice or just for you. There’s an Ultra March® option for ‘fast walkers’ – and a new ‘Solo Challenger’ start time to join up with others.

Best support & hospitality

This Ultra Challenge® famously lays on the best support and hospitality available on any UK endurance-style event. This enables you to step up and confidently tackle an 'Ultra' distance, with the best chance of success - and to enjoy your challenge! Here's a summary:

Before

  • Challenge app
  • Facebook forum
  • Training guides
  • Fundraising support
  • Training walks and runs
  • Video briefings
  • Travel planning
  • Parking

During

  • Baggage transfers
  • The start line
  • Chip timing and tracking
  • Rest stops
  • Food and drink
  • Medical support
  • Camping

Along the route

  • Fully signed route
  • Apps, maps and GPS
  • Route safety experts
  • Emergency response
  • Trek masters
  • 24 hour control room

After

  • Finish line experience
  • Finish times and certificate
  • Shuttles and transfers
  • Hot meal
  • Medical care and follow up
  • Deals on future challenges

  • Bag storage
  • Bag transfer
  • Bar
  • BBQ
  • Cafe
  • Camping
  • Music
  • Paid parking
  • Rural
  • Showers
  • Toilets
  • Urban

Event HQ

Henley Showground
Marlow Road
Henley-on-Thames
Buckinghamshire
RG9 3AS
UK

Map

Click here to open map

What3words

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  • Check points
  • Distance markers
  • First aid
  • Food stations
  • Marshals
  • Mass start
  • Toilets
  • Undulating
  • Water stations
  • Way markers

Overview

Starting at the basecamp in Henley (you can camp on Friday before the challenge and on Saturday afterwards) you set out Saturday morning for a continuous 50km challenge – finishing back in Henley. Youl’ll get full support all the way and there are three covered rest stops en route offering full support.

Map

map

  • Chip timing
  • Drinks
  • Event app
  • Fizz at the finish
  • GPS tracking
  • Map
  • Massage
  • Medal
  • Post-race meal
  • Pre-event training sessions
  • Snacks
  • Training plan
  • T-shirt

Included

  • Snacks and drinks every 10-15km
  • 23km | picnic lunch and fizzy drinks
  • 50km | hot meal
  • Finish | glass of fizz, medal and t-shirt

Bookable extras

  • Camping packages
  • Parking
  • Pre challenge transfer
  • Post challenge transfer
  • Baggage transfers
  • Challengers meal

Charity places

These charities have places in the event. To secure your place, select a charity and provide your details.

All charity places
Health and Medical

Epilepsy Society

Transforming the lives of people with epilepsy through world-leading research, advocacy and care.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£375

Children

Make-A-Wish UK

Creating life-changing wishes for children with critical illnesses.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£375

Children

NSPCC

Every childhood is worth fighting for.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£375

All charity places

  • Age 18 & over
  • Entries open
  • Charity entries open
  • Charity places
  • Enter online
  • Event merch available

Under 18s need to be accompanied by an adult.

Entry fees

Entry fee

£139.00

The support and friendliness of the staff and volunteers everywhere has been amazing - obviously all rest stops and walking through the finish line. Also the night-time route signage with the glow sticks was AMAZING!!

I love the level of support from everyone. There’s a great atmosphere and that’s part of why I love doing these challenges. My friend now loves them too!