2027 London Marathon Thank You Thank you so much for submitting an application to run for Haven House Children’s Hospice in the London Marathon 2027. Charity applications will be reviewed and we will inform everyone if they have been successful or not in July 2026. Should your application be successful you will be required to pay a non-refundable registration fee of £100, sign our fundraising agreement and pledge to raise a minimum of £2,500 for Haven House Children’s Hospice.