Three men from Exeter are remembering a 36 year old PE teacher from the City, who died last year.
They're circumnavigating the Devon border in memory of Matt Hammond - running all the way, at about 20 miles a day.
The entire distance is nearly 250 miles.
Matt worked at ISCA College of Media Arts where he was the Team Leader for PE and Drama.
His brother Paul along with two friends started circumnavigating Devon this week -
They're raising money for the Mark Marshall Youth Fund. Mr Marshall was a PCSO serving Countess Wear, who was killed serving in the TA in Afghanistan.
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