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
Twin Cities Marathon Mississippi River. The course follows the river for several miles before crossing into Saint Paul, and then proceeds east up Summit Avenue to finish at the Minnesota State Capitol. Miles 21–23 of the course proceed on a steady uphill from the river, and are considered among the more challenging finishes among American marathons, although the downhill last half-mile allows for relatively strong finishes. {| class="wikitable sortable" style="font-size: 95%;width: 90%;" !Year !! Winner !! Nationality !! Time(h:m:s) Twin Cities Marathon The Twin Cities Marathon (TCM) is an annual marathon in the Minneapolis–Saint Paul area. The race is often dubbed "The Most