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
Vancouver Marathon Marathon"" after runners were misdirected during its running — adding an extra 561 yards to the race. Currently, several different options are available for participants: Its current title sponsor is the BMO Bank of Montreal thus the marathon is known as BMO Vancouver Marathon. Previous title sponsor was Adidas in 2001-2005, known as the Adidas Vancouver International Marathon. The event is hosted by the Vancouver International Marathon Society (VIMS), a non-profit organization run by a volunteer Board of Directors, and managed by staff of the Society. Each year, VIMS recruit volunteers to help with pre-race preparations and race day operation.