Two hundred marathons in 100 days! Phew.

However, that is what Nick Butter from Cranborne is hoping to achieve – and he is already half way through.

Nick has taken on this challenge to launch his own charity in which tiny donations from many people will add up to help problems around the world.

But he also has time to remember other good causes, and he’ll have many thousands of miles in his shoes by the time he takes on the London Marathon for Round Table Children’s Wish in October.

Nick was introduced to Round Table Children’s Wish, which grants hand-crafted wishes to children with life-threatening illnesses, by his friend Suzie James who is also running for the charity in the London Marathon this year.

Endurance runner Nick is the only person in the world to run a marathon in every country – 196 of them. He completed 211 consecutive challenges around the world and the 196 figure was based on 193 identified as sovereign stages by the United Nations and three others not officially recognised, plus 15 more for ‘future-proofing’ his world record.

His current challenge began in mid-April when he left Cornwall on a mission to run 200 marathons around the coast.

This challenge, where he will aim to be the first person ever to run 100 double marathons back-to-back, is to raise funds for his own charity called The 196 Foundation, which aims to provide aid to people in need around the world via pledges from supporters of £1.96 per month.

Bournemouth-based charity Round Table Children’s Wish, which is celebrating its 30th birthday, is thrilled that Nick also wants to help youngsters closer to home.

Fundraising officer Clare Kyrillou said: “It means so much to us to have Nick signed up as one of our London Marathon runners this year.

“We’re so grateful for his support – we couldn’t grant our wishes to children without people like him who raise so much money for us through their efforts. We are forever thankful for the energy and passion all our runners are dedicating to our charity.”

Nick said: “When I heard about Round Table Children’s Wish’s great work for children I knew I’d love to run for them. Although they help children all over the country they have a Dorset base and as I’m from Dorset too it’s a perfect fit.”

You can learn more about the work of Round Table Children’s Wish at www.rtcw.org. Places are still available in this year’s Virgin Money London Marathon – contact clare@rtcw.org