Kent Downs 50 Ultra Challenge
Be a part of the exclusive Demelza wave and select 8-9am as your preferred start time when registering!
👣 Choose from 10km, 25km or 50km distances
👟 Walk, jog or run your chosen distance
🎟️ Be a part of Team Demelza in our exclusive start time as an official challenge partner
📌 Starting and finishing at the Kent Showground
💳 There are multiple sponsorship options available detailed here.
Sign up to for full sponsorship below or find mixed funding and own place options below.
Plus use code JUNEDEAL for 75% off your full sponsorship registration fees before 22 June!
Event Key Details
Saturday 11 October 2025 - 08:00 to 19:00
Kent Showground - Maidstone
Registration fees start from £20
Join Demelza's exclusive wave for this incredible challenge
Join Team Demelza
Select the best distance and fundraising option for you
Full sponsorship
50km CHALLENGE
£40 reg fee & minimum sponsorship £375
25km CHALLENGE
£30 reg fee & minimum sponsorship £275
10km CHALLENGE
£20 reg fee & minimum sponsorship £100
Mixed funding
50km CHALLENGE
£75 reg fee & minimum sponsorship £225
25km CHALLENGE
£50 reg fee & minimum sponsorship £150
10km CHALLENGE
£22.50 reg fee & minimum sponsorship £70
Own place
50km CHALLENGE
£139 reg fee, no minimum sponsorship requirement
25km CHALLENGE
£89 reg fee, no minimum sponsorship requirement
10km CHALLENGE
£39 reg fee, no minimum sponsorship requirement
The end of season Ultra Challenge®– in the ‘Garden of England’ – and you can fundraise for Demelza. A basecamp near Maidstone, with parking & weekend camping options, the main 50km looped route heads anticlockwise around the Kent Downs – starting on the North Downs, around picturesque Aylesford, and following the River Medway. Along to the majestic Leeds Castle, then the North Downs Way back to the show ground finish line celebration. It’s easily accessible; you’ll get full support; and with 25km & 10km options also available, there’s a Kent Downs Ultra Challenge® waiting for you!
What's included
Full route support, with GPS tracking
Regular snack and refreshment stops
Picnic lunch at the half way stop
Access to medics, podiatrists and masseuses at rest stops
Finish: medal, t-shirt, glass of fizz and hot meal
Dedicated support from the Demelza Events Team
A Demelza t-shirt
Opportunity to visit Demelza's Kent or South East London hospice.
Require more information?
Click here to find out more from Ultra Challenge.
Please note registration for this event is managed by Ultra Challenge, you will be transferred to their website.
Event FAQ's
Of course, if you require any further information about this event, then please contact the events team at events@demelza.org.uk or 0300 365 3653.
Charity Sponsorship – you pay a small registration fee; do lots of fundraising and we cover the cost of your event place!
Mixed Funding – pay half of the event place cost yourself; fundraise a bit less and we pay the balance of the event place cost.
Self-Fund – you pay the full cost of the event place; fundraise whatever you want, with no set target or deadline, and there’s no cost at all to the charity!
When fundraising, we would advise that you set up a JustGiving page.
At least 50% of the ‘sponsorship target’ should be with the Demelza 3 weeks prior to the Challenge. Failure to meet the deadline may result in cancellation of your place. The remaining 50% and any extra, should be with Demelza by 4 weeks after the Challenge.
50km - aged 16 or over and accompanied by an adult
25km - aged 14 or over and accompanied by an adult
10km - aged 8 or over and accompanied by an adult
Under 18s taking part must be signed up by someone over 18.
Yes, parking is available at the main Kent Showground, which is the start and finish venue.
Ultra Challenge has a regular shuttle service running from Maidstone train station to take you to your start line at Kent Showground basecamp. Maidstone train station is the closest rail link and runs on the Southeastern Railway.
Answer from Ultra Challenge - we pride ourselves on the quantity & quality of our catering, and meals, snacks & drinks are included!
- Snacks & drink stops every 12.5 km
- Snacks – from the healthy to treats
- Picnic at 25 km (for 50km participants)
- Energy drinks
- All dietary requirements catered for
- Lighter options for ‘runners’
- Finishers hot meal 50 km (picnic for 25km & 10km)