- Sat 12 Apr 2025
- Entries closed
50km
08:00
Age 16 & over
£139
- 50 km trail running + 320 m ascent

Event overview
From the Windsor Racecourse basecamp, 2000 adventurers will head out on looped routes through the Great Park with fantastic views of the Castle, on to Runnymede, along the Thames Path, and takes in some wonderful surrounding countryside.
You’ll get full support all the way, and a celebration finish back at basecamp. It’s a great way to kick off the Ultra Challenge® season and start to get in shape for summer.
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 Easter 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.
The Windsor Easter 50 Ultra Challenge is fun, safe, and rewarding – with full support all the way, enabling you to push yourself further in wonderful historic scenery – and enjoy a great day out!
- Bag storage
- BBQ
- Cafe
- Camping
- Changing facilities
- Music
- Paid parking
- Rural
- Showers
- Toilets
- Check points
- Distance markers
- First aid
- Food stations
- Marshals
- Sweeper
- Toilets
- Undulating
- Water stations
- Way markers
Overview
From Windsor the ‘figure of 8’ route follows The Thames Path with fantastic views of the riverside and surrounding countryside, passing Eton College, and old Windsor before a snacks & drink stop at Runnymede. You follow ‘The Great Walk’ towards Windsor Castle with epic views as you get close. A lunch stop back at basecamp, before the 2nd 25 km loop – with more of the Thames Path, a final rest stop at Dorney Court, then back to the Racecourse where a loud cheer and celebration await.
Map

Ultra March
An ULTRA MARCH® option is available for ‘walkers’ aiming for a sub-12 hour 50km.
- 2 Running Stones
- Event app
- GPS tracking
- Map
- Massage
- Medal
- Post-race meal
- Pre-event training sessions
- Training plan
- T-shirt
Included
- 12 km | snacks, hot drinks and water
- 25 km | picnic lunch and fizzy drinks
- 42 km | snacks, hot drinks and water
- 50 km | hot meal
- Finish | glass of fizz, medal and t-shirt
Bookable extras
- Breakfast
- Parking
- Pre challenge transfer
- Post challenge transfer
- Baggage
- Age 16 & over
- Charity places
- Enter online
- Event merch available
- Pay by instalments
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!!
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!
