Ultra Challenge Series Ultra Challenge Series - 2023 Cotswold Way Challenge - 24th to 25th June 2023 Click here for more information Peak District Challenge - 8th to 9th July 2023 Click here for more information North Downs 50 Challenge - 22nd July 2023 Click here for more information South West Coast Challenge - 5th August 2023 Click here for more information South Coast Challenge - 2 to 3 September 2023 Click here for more information Thames Path Challenge - 9 to 10 September 2023 Click here for more information Thames Bridges Trek - 9th September 2023 Click here for more information The Henley 10K - 10th September 2023 Click here for more information Chiltern 50 Challenge - 23rd September 2023 Click here for more information Ultra Challenge Series - 2024 London Winter Walk - 27th & 28th January 2024 Click here for more information Easter 50 Challenge - 6th April 2024 Click here for more information Isle Of Wight Ultra Challenge - 4th to 5th May 2024 Click here for more information Jurassic Coast Challenge - 18th to 19th May 2024 Click here for more information Manage Cookie Preferences