Chiltern 50 Ultra Challenge

CHILTERN 50 CHALLENGE 

Sat 27 Sept 2025 

A challenge event you can take on at your pace. The Chiltern 50 Challenge invites you to walk, jog or run a distance of your choice, along a signed route, with free food and drink at regular rest stops, plus support including medics, marshals and massage. Get the ‘Ultra Challenge’ support & hospitality all the way – helping you to push yourself further and achieve something really special for SSNAP.

This 50km looped route covers some of the best of the Chilterns countryside. You can Walk, Jog, or Run along historic trails and over rolling hills. Starting & finishing at a Base Camp in Henley Showground, there's a Saturday night celebration BBQ & entertainment with camping options. Passing through nature reserves, forests, and a few hills with great views - it's a route with real variety, and some wonderful scenery - and it's all easily accessible from London. 

With 25km and 10km challenge options also available - there's a challenge here for everyone – and you can join as an individual or as a team of friends / family. You may have to dig deep at times, you’ll meet new friends along the way, and the journey will be unforgettable! As you cross the finish line, you’ll get a big welcome from the cheer squad, a glass of fizz, t-shirt, and a special medal to celebrate your achievement. 

Click here for full details of prices and to sign up.

WHAT YOU’LL GET: 

✓ Sign up from £10
✓ Inclusive & fun event with a great atmosphere and camaraderie
✓ Choose your distance – 10km, 25km, or 50km options
✓ Walk, jog, or run – it’s your challenge, your way!
✓ A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
✓ Regular covered rest stops, with free food & drink, massages and medics
✓ An epic finish line moment, with a glass of fizz, medal and t-shirt
✓ Camping, transfer and parking options to make getting there & away easy
✓ Full fundraising support, and a choice of fundraising options