Metrication in the United States traditional mile-based lengths. In the Olympics, athletes run 1500 meters, not 1600 meters. Running races in the U.S. are usually run in metric distances (e.g., the 100 metres dash or the 5K run), although the mile distance remains popular. But even 5 and 10 kilometer races most often have mile markers on the course, and no kilometer markers. Long-distance races are often measured in kilometers, although exceptions exist (generally 10 mile races). The marathon is referred to as a 26.219-mile race (the official marathon standard distance originally being in English units — 26 miles, 385 yards) rather than 42.195 km.
Lisbon Half Marathon architecture, including the Belém Tower and Jerónimos Monastery. From 2008 onwards, the organisers set aside a €50,000 prize pot for any athlete breaking the world record over the half marathon distance. This led to the participation of a number of prominent athletes, with marathon world record holder Haile Gebrselassie winning the 2008 edition, while Charles Kamathi and Robert Kipkoech Cheruiyot followed behind. Another strong field was assembled in 2010 and Zersenay Tadese of Eritrea broke both the 20 kilometres and half marathon world records in his winning run. The competition also hosts a mini marathon race, which has featured many