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
U.S. Route 385 U.S. Route 385 U.S. Route 385 is a spur of U.S. Route 85 that runs for 1,206 miles (1,941 km) from Deadwood, South Dakota to Big Bend National Park in Texas. US 385 is designated as a part of the La Entrada al Pacifico trade corridor from Interstate 10 in Fort Stockton to Interstate 20 in Odessa. The section from Fort Stockton to McCamey is concurrent to US 67. From McCamey, the route proceeds to Crane in Crane County. From Crane to Odessa, US 385 meets up with U.S. Highway 62 in Seminole, Texas and continues northward to Brownfield, Texas,