I just red an article about the Olympics that was held in Stockholm 100 years ago.
During the Marathon it was very hot and one of the athletes from Japan was so exhausted after half the race that he stumbled into a garden where he got some refreshments. He stayed there until the evening, took the train back to Stockholm and flew home to Japan. Formally he didn't cancel the race.
Many years later some journalists remembered "the Japanese that disappeared" and found him in Japan, asked him to come back to Stockholm to finish the Marathon race. At the age of 76 he passed the finish line at the same stadium as the olympics were held back in 1912 (the stadium is still in use today). It took him in total 54 years 8 months and 6 days (hours not mentioned...) to finish the Marathon.
I think I can beat that time!