Long-distance running – all-weather tracks, roads and natural terrain, respectively. Typical long-distance track races range from 3000 metres to 10,000 metres (6.2 miles), cross country races usually cover 5 to 12 km (3 to 7½ miles), while road races can be significantly longer, reaching 100 kilometres (60 miles) and beyond. In collegiate cross country races in the United States, men race 8000 or 10000 meters, depending on their division, whereas women race 6000 meters . The Summer Olympics features three long-distance running events: the 5000 metres, 10,000 metres and marathon (42.195 kilometres, or 26 miles and 385 yards). Since the late 1980s,
Sanyo Women's Half Marathon Sanyo Women's Half Marathon The Sanyo Women's Half Marathon, also known as the Sanyo Women's Road Race (), is an annual road running competition for women held in December in Okayama, Japan. It features both a 10K run and half marathon race (21.1 km/13.1 miles). Sanyo Shimbun, a daily newspaper, is the title sponsor for the event. The day's events previously included an inter-prefectural competition (1985 to 1999) and a junior 3 km race in the 1990s. The half marathon race attracts top level Japanese and Japan-based foreign runners, as well as a smaller number of other international runners. The