Is this for real? He sounds like my kind of Olympian:

Shizo Kanakuri disappeared while running the marathon in the 1912 Summer Olympics in Stockholm. He was listed as a missing person in Sweden for 50 years — until a journalist found him living quietly in southern Japan.

Overcome with heat during the race, he had stopped at a garden party to drink orange juice, stayed for an hour, then took a train to a hotel and sailed home the next day, too ashamed to tell anyone he was leaving.

There’s a happy ending: In 1966 Kanakuri accepted an invitation to return to Stockholm and complete his run. His final time was 54 years, 8 months, 6 days, 8 hours, 32 minutes and 20.3 seconds — surely a record that will last forever.

According to his wiki, Kanakuri entered (& failed to finish) the 1924 Olympic marathon in Paris. There’s no word if he stopped off for a baguette on the way.

If, like Kanakuri, running a full marathon is a little much in one go, you could always enter the 5km superhero fun run in London. Thousands of runners will hit Regent’s Park in superhero costumes, all to raise money for the Environmental Justice Foundation’s work helping climate refugees and campaigns for sustainable fishing.

Just try not to take 54 years.

Kanakuri info via inky from the Futility Closet, superheroes - not actual EFJ entrants, I think they actually chose to wear costumes? - from Matt Stratton, other images from Google.