Full 100km Continuous
Sat 13 - Sun 14 Sep 2025 London, UK

Thames Path Ultra Challenge | Full 100km Continuous

The full, non-stop option of the epic Thames Path Challenge from leafy South West London following the river to Hampton Court, Runnymede to finish at Henley-on-Thames for a celebratory finish and BBQ!

Charity places
  • Sat 13 - Sun 14 Sep 2025
Bishops Park, Fulham, London > Henley-on-Thames, Henley-on-Thames

Full 100km Continuous

07:00

Age 18 & over

£199

  • 100 km trail running + 350 m ascent

Event overview

Over 3000 adventurers will join the Putney Bridge start, and the full 100km route heads upstream to Henley along the famous Towpath.

It’s through Richmond, Hampton Court, Runnymede, and Windsor, with some wonderful scenery to a riverside finish line. With three-quarter, half and quarter distance options also available – plus the separate 25km ‘Thames Bridges Trek’ and ‘The Moonlight 10 Walk’ through Central London as part of the weekend ‘festival’ – there’s a Thames 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 Thames Path 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
  • Changing facilities
  • Entertainment
  • Music
  • Paid parking
  • Rural
  • Showers
  • Toilets
  • Urban

Event HQ

Bishops Park, Fulham
Bishop's Avenue
Fulham
London
Greater London
SW6 6EA
UK

Map

Click here to open map

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  • Check points
  • Distance markers
  • Entertainment
  • First aid
  • Flat
  • Food stations
  • Marshals
  • Mass start
  • Point to point
  • Return transport
  • Sweeper
  • Toilets
  • Undulating
  • Water stations
  • Way markers

Overview

Start this epic challenge in leafy South West London on the River Thames. This route follows the meandering waterway to Hampton Court, onto Runnymede of Magna Carta Fame, and eventually onto Henley-on-Thames – home of the regatta – to a fabulous celebration finish and family BBQ. The route is our flattest of all the Ultra Challenge series, along path and terrain which will test your legs, hips and feet – but you will be rewarded with 100 km of beautiful scenery and historic villages and towns.

Map

map

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

Included

  • Snacks and drinks every 10-15km
  • 28km | picnic lunch and fizzy drinks
  • 50km | hot meal
  • 78km | brunch or lunch
  • 100km | cooked breakfast or hot meal
  • Finish | glass of fizz, medal and t-shirt

Bookable extras

  • Camping packages
  • Parking
  • Pre challenge transfer
  • Post challenge transfer
  • Baggage transfers
  • Extra meals

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
£37.50

Fundraise
£575

Animals

Cats Protection

For a world where every cat is treated with kindness and an understanding of its needs.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£37.50

Fundraise
£575

Children

NSPCC

Every childhood is worth fighting for.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£37.50

Fundraise
£575

All charity places

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

Under 18s need to be accompanied by an adult.

Entry fees

Entry fee

£199.00

We were so impressed how well organised it was. From registration to the finish line everything was amazing - the staff were so lovely and helpful - the catering was outstanding and all the facilities clean and tidy. A huge thank you to you all!!

Such a good feeling crossing that finish line after 100km of walking. I must say a special thanks to the guy doing the massages at the 78km stop at around 5.30am. I may not have made it without his healing hands! Great event, well organised and would recommend that experience to anyone!