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
Williams Route 66 Marathon and Riverside Drive which will keep 71st Street and the 71st Street bridge open to traffic The Swan Lake area will be located approximately 2.5 miles into the marathon and half marathon courses. Participants will travel through the Cascia Hall campus 3.75 miles into the marathon and half marathon courses. Williams Route 66 Marathon The Route 66 Marathon made its inaugural run Nov. 19, 2006, with the slogan “Let our first marathon be your first marathon.” The event attracted approximately 3,000 participants in marathon, half-marathon and relay-race events. Tulsa Route 66 Marathon Inc. is an all-volunteer 501(c)3 nonprofit organization. The