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
Valencia Half Marathon Valencia Half Marathon The Valencia Half Marathon () is an annual road running event over the half marathon distance (21.1 km or 13.1 miles) that takes place in the city of Valencia, Spain. It is organised by the S.D. Correcaminos Valencia sports club, which also organises the annual Valencia Marathon. The event was first held in 1991 as a race over 20 kilometres known as the "20 kilómetros Ciudad de Valencia" and this continued each May up to 2005. From 2006 onwards, the competition was extended slightly to become a half marathon. The change coincided with a growth in the