Sat 12 - Sun 13 Sep 2026 Egham, Surrey, UK

Thames Path Ultra Challenge | 2nd Half Challenge 50K

The second half option of the Thames Path Challenge from Runnymede along the meandering river through Cookham to Henley-on-Thames, home of the regatta, to a celebration finish and family BBQ!

Enter now Charity places
  • Sat 12 - Sun 13 Sep 2026
Runnymede Pleasure Ground, Egham > Henley-on-Thames, Henley-on-Thames
2nd Half Challenge 50K

11:00

Age 16 & over

£139

  • 50 km trail running + 150 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!

This event is part of Thames Path Ultra Challenge.

Event details

  • Average fitness
  • Beginner-friendly
  • Event village
  • Families
  • Traders at event

Route

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

Location

  • Bag transfer
  • Bar
  • BBQ
  • Cafe
  • Camping
  • Changing facilities
  • Entertainment
  • Music
  • Paid parking
  • Rural
  • Secure bag storage
  • Showers
  • Toilets
  • Urban

What's included

  • Camping
  • 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

Do it for charity

Looking to do this event for charity? Do it for one of the charities below or see the full list of charities on the Thames Path Ultra Challenge charity places | 2nd Half page.

Children

NSPCC

Every childhood is worth fighting for.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£275

Cancer

Macmillan Cancer Support

No one should have to face cancer alone.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£20

Fundraise
£375

Health and Medical

Stroke Association

Rebuilding lives after stroke.

  • Fundraising support
  • Fundraising materials
  • Dedicated contact

Sign up
£30

Fundraise
£375

How to enter

  • Age 16 & over
  • Entries open
  • Charity places
  • Enter online
  • Event merch available
Enter now

Other races at event

  • Sat 12 - Sun 13 Sep
  • #1 of 14
Full 100K Continuous

06:45

Age 18 & over

£199

  • Sat 12 - Sun 13 Sep
  • #2 of 14
Full 2 Day Daylight 100K

07:00

Age 18 & over

£199

  • Sat 12 Sep
  • #3 of 14
1st Half Challenge 50K

06:45

Age 16 & over

£139

  • Sat 12 Sep
  • #5 of 14
1st Quarter Challenge 28K

07:00

Age 14 & over

£89

  • Sat 12 Sep
  • #6 of 14
2nd Quarter Challenge 22K

12:00

Age 14 & over

£89

  • Sat 12 - Sun 13 Sep
  • #7 of 14
3rd Quarter Challenge 28K

17:00

Age 14 & over

£89

  • Sun 13 Sep
  • #8 of 14
4th Quarter Challenge 22K

08:00

Age 14 & over

£89

  • Sat 12 Sep
  • #9 of 14
3/4 Challenge 72K

09:30

Age 18 & over

£169

  • Sun 13 Sep
  • #10 of 14
The Henley 10K

10:00

Age 8 & over

£39

  • Sat 12 Sep
  • #11 of 14
Thames Bridges Trek 25K

10:00

Age 14 & over

£89

  • Sat 12 Sep
  • #12 of 14
Thames Bridges Trek 10K

10:30

Age 8 & over

£49

  • Fri 11 Sep
  • #13 of 14
Thames Moonlight 10 Mile

16:30

Age 8 & over

£59

  • Fri 11 Sep
  • #14 of 14
Thames Moonlight 10K

18:00

Age 8 & over

£59

Other South East events

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Sleep well

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Train slow

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Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

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