他正在為慈善機構Sisu Derbyshire籌集資金，該機構將與Alfreton鎮政府合作，舉辦活動以紀念辛普森先生的努力，並啟動Active8 Alfreton項目，鼓勵所有年齡和能力的人參加體育活動。
A teaching assistant is gearing up for an epic challenge of 10 Ironman triathlons in as many days to raise money for charity.
He is raising money for charity Sisu Derbyshire, who will be working with Alfreton Town Council, with the authority set to host events to mark Mr Simpson's efforts and launch the Active8 Alfreton Project to encourage people of all ages and abilities to take part in physical activity.
They will also be putting on a number of outdoor activities that come under the eight headings: Run, walk, swim, ride, kick, throw, hit and lift.
Mr Simpson will be joined by several family members and friends, who will be supporting and staying with him in tents and caravans on the site throughout the event.
He said he was hoping to complete each daily challenge by between 15 and 16 hours, but admitted that might "slip" as he became more tired.
"You've actually got until 15 minutes before the start of the next day to finish the preceding one," he said.
Mr Simpson has been training for the event since last August, and estimates that since January, he has run, cycled and swam 5,500 miles (8,851km) - the approximate distance between London and Mexico City.
"My main goal is to give it my absolute best shot. I'm not hung up on winning, but I'm not even hung up on having to complete this thing, I think it's more about doing my absolute best and what I really want is my absolute best to be falling over the line at the finish having completed it."