The marathon is 42.195 km because of a royal viewing box
The oddly precise length of every marathon traces back to where the British royal family wanted to watch in 1908.
A marathon is run over the strangely specific distance of 42.195 km - 26 miles and 385 yards. That figure isn’t drawn from ancient history; it was fixed at the 1908 London Olympics.
Early marathons varied in length, loosely inspired by the legend of a Greek messenger running from Marathon to Athens. For the 1908 Games, organisers planned the route to start at Windsor Castle, so the royal children could watch from the nursery window, and to finish in front of the royal box inside the Olympic stadium.
Measuring between those two fixed points produced 26 miles 385 yards. The distance wasn’t an instant standard, but the International Amateur Athletic Federation (now World Athletics) adopted it for all future races in 1921.
A length chosen for royal convenience in one city is now the global benchmark every marathoner on Earth must cover.
Sources & references
2 referencesWell-established. Corroborated by 2 independent sources.
