Long-distance running confined area. Early tracks were usually on flattened earth or were simply marked areas of grass. The style of running tracks became refined during the 20th century: the oval running tracks were standardised to 400 metres in distance and cinder tracks were replaced by synthetic all-weather running track of asphalt and rubber from the mid-1960s onwards. It was not until the 1912 Stockholm Olympics that the standard long-distance track events of 5000 metres and 10,000 metres were introduced. Long-distance road running competitions are mainly conducted on courses of paved or tarmac roads, although major events often finish on the track
10,000 metres at the Olympics (IOC) later decided not to recognise these games as part of the official Olympic series. Some sports historians continue to treat the results of these games as part of the Olympic canon. At this event a men's five-mile race was held – the first time a long-distance event featured at an Olympic competition. A British runner, Henry Hawtrey, won the event. Two 1908 Olympic participants for Sweden, John Svanberg and Edward Dahl, were the minor medalists. 10,000 metres at the Olympics The 10,000 metres at the Summer Olympics is the longest track running event held at the multi-sport event. The