Ultra Challenge Series

We have teamed up with Ultra Challenge who offer 17 fantastic events all over the UK! If you're looking to test yourself and raise funds for a cause close to your heart - then this challenge is for you! Whether along stunning coastlines or paths through scenic countryside - there's an Ultra Challenge for everyone.

Sponsorship for your Ultra Challenge

To do your challenge for APF you will need to pay a registration fee and commit to raising a minimum amount.

When booking, choose 'Full Sponsorship For Charity', then scroll down to the section titled 'Sign up for a listed charity' and select 'Action for Pulmonary Fibrosis' from the list when completing your registration form.

Once you have booked your challenge, we will be notified and we'll send you a Fundraising Pack to help get your fundraising started.

Pay for the Ultra Challenge yourself

If you would prefer to pay for your own Ultra Challenge, there is no minimum fundraising target.

When booking, choose 'Own Place Charity Fundraising' and select 'Action for Pulmonary Fibrosis' from the list when completing your registration form.

Once you have booked your challenge, we will be notified and we'll be in touch to support you all the way.

2025 Ultra Challenge Series

APF are an official partner on the 2025 Ultra Challenge Series, you get a 50% discount on the 'Full Sponsorship' registration fee when signing up to support us.

South Coast Challenge: 6 - 7 September

Thames Path Challenge: 13 - 14 September

Thames Bridges Trek: 13 September

Thames Moonlight Challenge: 13 September

Chiltern 50 Challenge: 27 September

Kent Downs 50 Challenge: 12 October

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2026 Ultra Challenge Series

APF are a Listed Charity in the 2026 Ultra Series Series - Full Sponsorship and Own Place options available, book early to take advantage of exclusive early bird deals.

London Winter Walk: 24 - 25 January

Bath 50 Challenge: 28 March

Windsor 50 Challenge: 18 April

Isle of Wight Challenge: 2 - 3 May

Jurassic Coast Challenge: 16 - 17 May

London 2 Brighton Challenge: 23 - 24 May

Lake District Challenge: 6 - 7 June

Cotswold Way Challenge: 13 - 14 June

North Yorks Challenge: 20 - 21 June

Peak District Challenge: 4 - 5 July

Gower Peninsula Challenge: 18 - 19 July

South West Coast 50 Challenge: 25 July