The Marathon for many is the ultimate test of endurance, a running event held over the course of 42.195 kilometres (26 miles 385 yards). The origin of the marathon dates back to 490 BC when a Greek soldier, Pheidippides, ran from the battlefield of Marathon to Athens to report the Greek victory over the Persians, before collapsing and dying.
Marathons are held across the world and have been a part of the Summer Olympics since 1896. The most high profile marathons, which form part of the World Marathon Majors competition are held in Tokyo, Boston, London, Berlin, Chicago and New York City.
Many events are run by both elite athletes, as well as amateurs looking to test their endurance or raise awareness and support causes.