To some this would make perfect sense: finish the London Marathon, then run home.
For Sam Robson, that made his long run 125 miles, which took him roughly 29 hours, an average of 13 minutes per mile.
According to this story, Robson took on the super-marathon to raise about $5,000 for the UK Epilepsy Society. The 28-year-old medical researcher has had the disease since he was a teen.
The challenge was not the distance, but maintaining his nutrition and hydration.
"I had to have regular breaks to refill my water and whenever I stopped my legs seized up so I couldn't rest for long," Robson said. "In terms of tiredness, my legs felt pretty good and the worst bit was I had to keep eating to replace all the calories I was burning."