Race to the Stones | Day One | Thames Valley 50K
Cross England’s longest river at the halfway mark before finishing with a triumphant climb towards the iconic Lattin Down Basecamp finish line.
Enter now Charity places- Sat 11 Jul 2026
08:00
Age 18 & over
£90-£180
- 50 km trail running + 710 m ascent
Event overview
Explore Britain's oldest path, the Ridgeway, on this epic ultramarathon offering stunning 50K or 100K routes through the stunning Chiltern Hills AONB and North Wessex Downs AONB, en route to the finish line at the mythical UNESCO World Heritage Site, Avebury Stone Circle.
Expect a superb level of support and organisation, on the UK's favourite ultramarathon, with fantastic overnight options at the all-inclusive Basecamp.
Highlights
Britain's oldest trail
An unforgettable route running towards the UNESCO World Heritage Site of Avebury Stone Circle.
Unrivalled support
World-class support, whether you set the record or make the most of extended cut-offs.
Accessible terrain
A fantastic mix of woodland, riverside and ridge trails without the need for technical skill.
90% completion rate
Extended cut-off times and medical support at every stage make it a fully accessible Ultra.
Community
Join the community of thousands of Ultra runners and walkers for guidance, support and camaraderie.
This event is part of Race to the Stones.
Event details
- Average fitness
- Beginner-friendly
- Event village
- Families
- Spectators
- Teams
Route
- Check points
- Cut off time
- First aid
- Food stations
- Marshals
- Point to point
- Toilets
- Undulating
- Water stations
- Wave start
- Way markers
Location
- Bag transfer
- Camping
- Paid parking
- Rural
- Toilets
What's included
- Camping
- Chip timing
- GPS tracking
- Medal
- Post-race meal
- Race photo
Sustainability
- Bring your own cup
- Public transport links
- Recycling
- Sustainability policy
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 Race to the Stones Thames Valley 50K charity places for 2026 page.
Cancer
Macmillan Cancer Support
No one should have to face cancer alone.
- Technical t-shirt
- Personalised running vest
- Fundraising support
- Fundraising materials
- Training plan
- Training guide
- Online training zone
- Dedicated contact
- Exclusive social group
- Pre-event training sessions
Sign up
£45
Fundraise
£350
How to enter
- Age 18 & over
- Entries open
- Charity places
- Enter online
- Event merch available
- Insurance available
Other races at event
- Sun 12 Jul 2026
- #2 of 5
08:00
Age 18 & over
£90-£180
- 50 km trail running + 630 m ascent
- Sat 11 Jul 2026
- #3 of 5
08:00
Age 18 & over
£185
- 100 km trail running + 3704 ft ascent
- Sat 11 Jul 2026
- #4 of 5
08:00
Age 18 & over
£175-£275
- 100 km trail running + 3704 ft ascent
- Sat 11 Jul 2026
- #5 of 5
08:00
Age 18 & over
£165
- 100 km trail running + 3704 ft ascent