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Contact us

Our London office is open Monday to Friday from 9.00 am to 5.30 pm.

Registration Enquiries

If you have any queries and would like to speak to the London 2 Cambridge or Capital Marathon Challenge team, please call us on 0207 609 6695 or email

General Event Enquiries

For all general event enquiries, please contact

Press & Media Enquiries

For all press & media enquiries please email

This website is owned by Action Challenge UK Ltd - which is a Limited Company registered in England and Wales. Registered Number: 03825838 - Registered Office: Suite 2, Rosehill, 165 Lutterworth Road, Blaby. Leicestershire, LE8 4DY