Family, friends, colleagues and shoppers turned out on Sunday to watch the start of a world record attempt in Midsummer Place.
Firefighter Steve Moore is trying to run his way into the record books by seeing how many miles he can complete on a treadmill in a week.
Steve, aged 40, who is based at Aylesbury Fire Station, is aiming to beat the official record verified by Guinness World Records, which stands at 468 miles.
To do so, he will have to run the equivalent of at least 18 back-to-back marathons within 168 hours. He started at 11am and will finish in time for the two-minute silence at 11am on Remembrance Day, Sunday 13 November.
Steve is running to raise money for the Royal British Legion, which this year celebrates its 90th anniversary, and Help Our Wounded, the fundraising arm of the Royal Marines Association.
He is no stranger to physical and mental endurance challenges, having competed in a number of long-distance “ultra-marathon” events over the years. Steve is aiming to be on the treadmill for between 20 and 22 hours a day, stopping only for nutrition and rest breaks.
Steve said: “I have a lot of people to thank for making this possible, and the support I receive will be what carries me through.
“I hope people will stop and say hello when they see me and donate whatever they can to the causes.”
To donate visit his donation site by clicking the link.