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
National Distance Running Hall of Fame too few sponsors to donate money for the event. With the inclusion of Grete Waitz and Priscilla Welch, the membership is not limited to Americans. Both athletes represented other countries internationally (coincidentally both in the 1984 Olympic Marathon, the first Olympic marathon for women), though they had an extensive running history in the United States. National Distance Running Hall of Fame The National Distance Running Hall of Fame was established on July 11, 1998, to honor those who have contributed to the sport of distance running. Many of those who are inducted have achieved great success as runners, but some