I don't run marathons 
A marathon is 26 miles. That is way too long for me.  I would be lucky to run 26 feet.
Really?
The marathon  was o ne of the original Olympic events, started in 1896
Ok. Where was it?
The first one was Marathon to Athens  when a sldier ran to announce a victory.  He collaped and died at the end.
Really? I think that the reason it is called marathon
distance did not become standardized until 1921. More than 800 marathons are held throughout the world each year, with the vast majority of competitors being recreational athletes, as larger marathons can have tens of thousands of participants.
History.
History Origin.
The name "Marathon" comes from the legend of Philippides (or Pheidippides), the Greek messenger. The legend states that he was sent from the battlefield of Marathon to Athens to announce that the Persians had been defeated in the Battle of Marathon (in which he had
Marathon
The marathon is a long-distance race with an official distance of 42.195 kilometres (approximately 26 miles 385 yards), usually run as a road race. The event was instituted in commemoration of the fabled run of the Greek soldier Pheidippides, a messenger from the Battle of Marathon to Athens, who reported the victory. The marathon can be completed by running or with a run/walk strategy. There are also wheelchair divisions.
The marathon was one of the original modern Olympic events in 1896, though the