Chest-high snow drifts and freezing temperatures have made this year's 268-mile (430km) Montane Spine Race - between Derbyshire and the Scottish Borders - amongst the toughest in its short history.

Watch: The brutal 268-mile race that only half of runners finish Britain's most brutal endurance race has lived up to its reputation with close to half of the starters dropping out by midway.

It's a story Kim Collinson knows well. He failed in his last three attempts to cross the finishing line of the 268-mile race. But this year, he has won the competition in a time of 82 hours and 46 ...