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
3000 metres steeplechase due to doping offenses: Below is a list of all other times superior to 9:05.00: The following athletes had their performances (inside 9:08.00) annulled due to doping offenses: 3000 metres steeplechase The 3000 metres steeplechase or 3000-meter steeplechase is the most common distance for the steeplechase in track and field. It is an obstacle race over the distance of the 3000 metres, which derives its name from the horse racing steeplechase. It is one of the track events in the Olympic Games and the World Championships in Athletics; it is also an event recognized by the International Association of Athletics