A Canadian ultramarathoner managed to run for 60 hours through the cold, muddy hills of one of the toughest races in the world, but his triumph ended with heartbreak and a disqualification.

Gary Robbins, of North Vancouver, B.C., was attempting to become the first Canadian to complete the notorious Barkley Marathons, a gruelling 60hour race through the steep hills of Tennessee that only a handful of people have ever completed.

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