I love running in marathons.
You mean distance running? as in,  aerobic in nature and requires stamina as well as mental strength.
Yes, it is a lot of fun. Do you know how far people have to run in 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
Long-distance running
Long-distance running, or endurance running, is a form of continuous running over distances of at least 3 kilometres (1.8 miles). Physiologically, it is largely aerobic in nature and requires stamina as well as mental strength.
Among mammals, humans are well adapted for running significant distances, and particularly so among primates. The endurance running hypothesis suggests that running endurance in the genus "Homo" arose because travelling over large areas improved scavenging opportunities and allowed persistence hunting. The capacity for