Ultra Challenge Series 2026

Ultra marathon run/walk

Location: All over the UK

Start date: 13 Jun 2026

End date: 26 Sep 2026

Sign-up fee: £15 and upwards

Take on an unforgettable challenge in 2026

Looking ahead to a new adventure in 2026? Bring together friends, family or colleagues and take on an unforgettable Ultra Challenge, all while raising vital funds for The Lily Foundation and helping to fight mitochondrial disease.

These remarkable events are designed to test you personally, but they’re also perfect as shared experiences, bringing people together to work towards a powerful goal. Whether you’re an experienced runner eager to push further, a keen walker stepping up to a bigger challenge, or simply looking to create lasting memories with your team, there’s an Ultra Challenge to suit you.

Set against dramatic coastlines and some of the UK’s most beautiful countryside, you’ll walk, jog or run at your own pace alongside thousands of fellow participants. With regular rest stops offering food and drink, clearly marked routes and an uplifting event atmosphere, you’ll feel supported from start to finish, with plenty to celebrate at the end.

Pick your distance – full, half, quarter or 10k – and make 2026 the year you take on something truly memorable. Together, we can make a difference for everyone affected by mitochondrial disease.

And for a limited time only, until 31st January, Ultra Challenge are offering 50% off their full charity sponsorship registration fees (excluding 10km and 10 mile events). Claim your discount with the code HELLO2026.

Cotswold Way Ultra Challenge 2026

Thames Path Ultra Challenge 2026

Chiltern 50 Ultra Challenge 2026