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
2012 Olympic Marathon Course a new women's marathon Olympic record of , clipping 7 seconds off the previous record. The new Olympic record was 7min 42sec slower than Paula Radcliffe's world record set in 2003 during the London Marathon. The winning time of 2:08:01 by Stephen Kiprotich of Uganda in the men's marathon, on 12 August 2012, was outside the Olympic marathon record and outside the world marathon record. The winners of the Paralympic marathon events were: The 2012 Olympic route differed significantly from that of the long-established annual London Marathon. Although the Olympic route shared a finish in The Mall and a section