Long-distance running only the placing is of importance. Other less popular variants such as fell running, trail running, mountain running and tower running combine the challenge of distance with a significant incline or change of elevation as part of the course. Multisport races frequently include endurance running. Triathlon, as defined by the International Triathlon Union, may feature running sections ranging from five kilometres (3.1 mi) to the marathon distance (42.195 kilometres, or 26 miles and 385 yards), depending on the race type. The related sport of duathlon is a combination of cycling and distance running. Previous versions of the modern pentathlon incorporated
Slow marathon Mihret Kebede created the project as part of a residency with Deveron Arts (now Deveron Projects). The artist had wanted to walk the 5850 miles from Ethiopia to Scotland, but this was not possible because of physical difficulties such as crossing deserts as well as closed borders and visa restrictions. Kebede calculated that if 225 people each walked 26 miles together they would have travelled the distance between Ethiopia and Scotland; in response she developed an accumulative marathon, which involved a 26-mile walk in and around the town of Huntly, and a parallel walk in Addis Ababa, Ethiopia. The inaugural