- Sat 12 Jul 2025
Guildford 10K
10:00
Age 15 & over
£39
- 10 km trail running + 233 m ascent
Event overview
The routes have real variety and some wonderful scenery and fabulous views out to the south – plus they're easily accessible from London!
You’ll get full support and hospitality and with 25km and 10km options also available, along with optional University-style accommodation at basecamp – there’s a North Downs Ultra Challenge for you!
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 North Downs 50 Ultra Challenge.
Event photos
Event video
- All fitness levels
- Event village
- Families
- Newcomers
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
- Free parking
- Music
- Rural
- Showers
- Toilets
- 1 lap
- Distance markers
- First aid
- Marshals
- Sweeper
- Undulating
- Way markers
Overview
A beautiful 10km looped route from the basecamp at Surrey Sports Park. The route explores public footpaths within Littleton past Loseley Park. You’ll be rewarded with a medal, a glass of fizz and a discounted hot meal to celebrate your achievements.
Map
- Map
- Medal
- Post-race meal
- T-shirt
Included
- Finish – bookable finisher’s meal, a glass of fizz, medal and t-shirt
Bookable extras
- 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
Cure Parkinson's
Here for the cure; working with urgency to find new treatments to slow, stop and reverse Parkinson’s.
- Fundraising support
- Fundraising materials
- Dedicated contact
Sign up
£15
Fundraise
£100
Cancer
Macmillan Cancer Support
No one should have to face cancer alone.
- Fundraising support
- Fundraising materials
- Dedicated contact
Sign up
£10
Fundraise
£100
Children
Make-A-Wish UK
Creating life-changing wishes for children with critical illnesses.
- Running vest
- Fundraising support
- Fundraising materials
- Training plan
- Online training zone
- Dedicated contact
- Certificate
Sign up
£15
Fundraise
£100
- Age 15 & over
- Entries open
- to 13/06/2025
- Charity places
- Enter online
- Event merch available
16-17 year olds need to be accompanied by an adult.
Entry fees
Registration fee
£39.00
I cannot thank everyone enough for their personal support and unlimited energy. 5★★★★★ and 10/10 in all my experiences.
For my first event, I was amazed at how well-organised it was. Particularly as I was on my own. Very well signposted. Excellent medical assistance. Very friendly crew. Fab event!