I've raised £500 to On 22nd, 23rd or 24th May(Weather dependant), I am running a Marathon with carrying 20kg to raise money for Attleborough Boxing club

Attleborough Boxing Club is a non profitable club that trains people all ages, genders, sizes, nationalities and backgrounds with members as young as 4 years old. It has over 100 people theough the door each week, from people who just want to get fit to some of the best Boxers in their category in the UK!
The club has been massively hit by COVID19 so im trying to raise £500 to cover some of the running costs to keep it afloat so all the people associated with it have a club to go back to when we finally beat this horrible virus!
I an going to run a marathon(26.2 miles) in under 5 hours, with a Bergan(big backpack for those who dont know) on my back weighing a total of 20kg(44lbs). The route will be a few miles on road, then the rest mainly on undulating cross country tracks. So it will be tough on the ankles, knees, back and lungs! I will have somebody there biking along with me(social distancing of course) updating on progress with videos and pictures on my instagram page.