Have you ever done a marathon? It is a 26 mile long race.
I have not run a marathon.  My wife, however, enjoys 1/2 marathons.
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
Monumental Marathon
The CNO Financial Group Indianapolis Monumental Marathon and Monumental Half Marathon are a pair of concurrent road races run annually in downtown Indianapolis, Indiana.
The Monumental Marathon is a 26.2 mile road race. It is now the only full fall marathon run in Indianapolis, after the Indianapolis Marathon was ended after 2015 as a full (but was purchased by the Monumental Marathon and is now operated as the Indianapolis Half Marathon at For Ben). In 2015 it claimed to have become one of the 20 largest marathons in the