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
Little Rock Marathon Rock Central High School. The Little Rock Marathon is a 26.2-mile running/walking tour through the historical sites of Little Rock. The course is certified by the UST&F. The Little Rock Half Marathon (13.1 miles) is run on the same course as the big race, but it is half the distance. The course is certified by the UST&F. The Little Rock 10K (6.2 miles) will run with the 5K on the day before the Marathon/Half. The Little Rock 5K (3.1 miles) will run with the 10K on the day before the Marathon/Half. This race is designed for individuals who want an