Matt Ladkin, of Dovercourt, ran the London Marathon on Sunday, April 23, in honour of his brother Tom Petley.
Tom, from Ramsey, died suddenly in his sleep on April 21 last year from an undiagnosed heart condition.
Matt fundraised for Cardiac Risk in the Young (CRY) and has received more than £5200 in donations so far.
He said: “The marathon was an absolute buzz, if no one was there it would have been gruelling and awful though.
To donate to Matt’s fundraiser visit justgiving.com/fundraising/runfortom2023.
