With 50km, 25km & 10km options – it’s the perfect opportunity to challenge yourself in spring and get in shape. Join 2,000 others for and Walk, Jog, or Run from Windsor Racecourse.
From Windsor the ‘figure of 8’ route follows The Thames Path with fantastic views of the riverside & 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 & celebration await.
50 km & 320 m
All rest stops have – covered seating areas, toilets, medics & manned by our event teams.
There’s a full range of optional parking & pre or post Challenge Shuttle bus transfer services, to make it easy to join & exit – and to provide flexible options for your planning. These include:
See ‘Bookable Extras’ for full details
2 available
For WALKERS looking to achieve a sub 12 hour total time for 50 km. There’s a dedicated start time to opt into on the Reg Form – and join in wiyj 200 or so other ‘Marchers’
25 km & 175 m
All rest stops have – covered seating areas, toilets, medics & manned by our event teams.
There’s a full range of optional parking & pre or post Challenge Shuttle bus transfer services, to make it easy to join & exit – and to provide flexible options for your planning. These include:
See ‘Bookable Extras’ for full details
Perfect if you want a more leisurely start to your season – or perhaps to bring the children along and make it an active family day out! The route heads around Eton, then crosses over the river to the Windsor area – and heads west with fantastic views of the magnificent Castle before making our way back to basecamp – where a picnic lunch awaits!
10 km & 25 m
There’s a full range of optional parking & pre or post Challenge Shuttle bus transfer services, to make it easy to join & exit – and to provide flexible options for your planning. These include:
See ‘Bookable Extras’ for full details
Over 200,000 adventurers have taken on an Ultra Challenge® so far, and the 17 unique events make up the UK’s biggest & best series of treks & trail runs – which have also raised £55+ million for charities. Whichever challenge you choose, you’ll get full support all the way so you can set a new goal, enjoy the British countryside, and Push Yourself Further! Whoever you are – If you’re up for a challenge, it has to be an Ultra Challenge in 2025.
Lake District Ultra Challenge
7-8 June 2025
100 km loop + Half + Marathon + Quarter Challenge options & Ambleside 10K
1 of 16Isle of Wight Ultra Challenge
3-4 May 2025
106 km ‘Full Island’ Loop + Half & Quarter Island options AND ‘Cross Island’ & Medina 10 Mile challenges.
2 of 16London 2 Brighton Ultra Challenge
24-25 May 2025
100 km + Half, Marathon & Quarter Challenge distance options + Brighton 25 km Loop!
3 of 16South Coast Ultra Challenge
6-7 Sept 2025
100 km + Half & Quarter Challenge options
4 of 16Jurassic Coast Ultra Challenge
17-18 May 2025
100 km + Half & Quarter Challenge options AND Marathon & Bridport 10K
5 of 16Thames Path Ultra Challenge
13 – 14 Sept 2025
100 km + 3/4 + Half & Quarter Challenge options & Henley 10K
+ Thames Bridges 25km Trek (Sat – Central London)
+ Friday Moonlight 10K Walk (Central London)
+ The Henley 10K (Sunday)
6 of 16South West Coast 50 Ultra Challenge
2 August 2025
50 km Loop + 25 km & 10 km Challenge options
7 of 16Gower Peninsula Ultra Challenge
19-20 July 2025
100 km (fig. of 8) 50 km Loops (West & East) + Marathon + 25 km & 10 km Challenge options
8 of 16Peak District Ultra Challenge
28-29 June 2025
100 km (Fig. of 8) + Half (loop) & Quarter Challenge options & The Bakewell 10 Mile.
9 of 16Cotswold Way Ultra Challenge
21 – 22 June 2025
100 km + 3/4 + Half & Quarter Challenge options. + Cirencester 10K
10 of 16Chiltern 50 Ultra Challenge
27 Sept 2025
50 km Loop + 25 km & 10K Challenge options
11 of 16North Downs 50 Ultra Challenge
26 July 2025
50 km Loop + 25 km & 10km Challenge options.
12 of 16Easter 50 Ultra Challenge
Sat 12 April 2025
Windsor
50 km, 25 km, 0r 10 km Loops from racecourse basecamp.
13 of 16London Summer Walk
Sat 23 August 2025
50 km or 25 km or 10 km looped route – Woolwich Start / Finish
14 of 16London Halloween Walk
Sat 25 October 2025
25 KM or 10 KM spooky looped route options. Start / finish – The Oval Cricket Ground ‘dungeon’,
15 of 16NEW – Kent Downs 50 Ultra Challenge
Sat 11 October 2025
50 KM, 25 KM or 10 KM looped routes options. Start / finish – The Kent Showground nr. Maidstone.
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