Endurance athlete Mike Buss is nearly a third of the way through his biggest challenge yet – running 100 marathons in 100 days in aid of the Gazette and Herald’s Help for Heroes appeal.

The 36-year-old former soldier from Highworth is on day 31 of the Hero 100 Challenge, during which he will live up to his motto ‘beyond impossible’ as he attempts to raise £100,000 for wounded servicemen.

Each day Mr Buss runs 26.2 miles on a treadmill, fuelled by jelly sweets and a reminder of what it is all about.

He said: “Mentally, sometimes it becomes quite difficult. Some days you don’t want to get out of bed, let alone get on the treadmill.

“But it is quite quick to get motivated when Sky News comes on and they are showing footage from Afghanistan or a repatriation and you see what you’re doing it for.”

Although the father-of-one, who has completed 98 road marathons, is undertaking the mission alone, he has been overwhelmed by the amount of support he has received along the way.

He said: “I have had a lot of people running on treadmills next to me and taking it in turns to run.

“Each day it has taken between four and four-and-a-half hours to finish it, and it really shows when I have had someone with me.”

The world record breaker completed his 28th marathon on the air field at RAF Lyneham on Monday, where he was joined by station commander John Gladston.

Group captain Gladston said: “We are all in awe of Mike and what he is doing for Help for Heroes, which is a brilliant organisation.

“What he is doing is astonishing, and to see this sort of thing going on gets my total support.”

As part of his fundraising efforts, Mr Buss is raffling a Jeep Patriot through sponsors Chrysler.

To enter the raffle text the word Jeep to 60777. The text will cost £5, which will be donated to Help for Heroes, plus the standard network charge.

To follow Mr Buss’ efforts over the next 72 days visit his Facebook page, Mike Buss Beyond Impossible or to sponsor him log on to www.justgiving.com/mikesworldrecords.