1500 metres

The 1500 metres or 1,500-metre run (approximately ¹⁵⁄₁₆ mile) is the foremost middle distance track event in athletics. The distance has been contested at the Summer Olympics since 1896 and the World Championships in Athletics since 1983.

The demands of the race are similar to that of the 800 metres, but with a slightly higher emphasis on aerobic endurance and a slightly lower sprint speed requirement. The 1500 metre race is predominantly aerobic, but anaerobic conditioning is also required.

Each lap run during the world-record race run by Hicham El Guerrouj of Morocco in 1998 in Rome, Italy averaged just under 55 seconds (or under 13.8 seconds per 100 metres). 1,500 metres is three and three-quarter laps around a 400-metre track. During the 1970s and 1980s this race was dominated by British runners, along with an occasional Finn, American, or New Zealander, but through the 1990s a large number of African runners began to take over in being the masters of this race, with runners from Kenya, Morocco, and Algeria winning the Olympic gold medals.

2016 Summer Olympics

The 2016 Summer Olympics (Portuguese: Jogos Olímpicos de Verão de 2016), officially known as the Games of the XXXI Olympiad, and commonly known as Rio 2016, are a major international multi-sport event that will take place in Rio de Janeiro, Brazil, from August 5 to August 21, 2016. Record numbers of countries and sets of medals are awaiting in the games. More than 10,500 athletes from 206 National Olympic Committees (NOCs), including from Kosovo and South Sudan for the first time, will take part in this sporting event. With 306 sets of medals, the games will feature 28 Olympic sports — including rugby sevens and golf, which were added by the International Olympic Committee in 2009. These sporting events will take place on 33 venues in the host city and additionally on 5 venues in the cities of São Paulo (Brazil's largest city), Belo Horizonte, Salvador, Brasília (Brazil's capital), and Manaus.

The host city of Rio de Janeiro was announced at the 121st IOC Session held in Copenhagen, Denmark, on 2 October 2009. The other finalists were Madrid, Spain; Chicago, United States; and Tokyo, Japan. Rio will become the first South American city to host the Summer Olympics, the second city in Latin America to host the event after Mexico City in 1968, and the first since 2000 in the Southern Hemisphere. This will be the third time the Summer Olympics are held in a developing country, after the 1968 Games in Mexico and the 1988 Games in South Korea.

IAAF Diamond League

The IAAF Diamond League is an annual series of track and field meetings held from 2010 onwards, beginning with the 2010 IAAF Diamond League. It was designed to replace the IAAF Golden League, which was held annually since 1998.

While the Golden League was formed to increase the profile of the leading European athletics competitions, the Diamond League's aim is to "enhance the worldwide appeal of athletics by going outside Europe for the first time." In addition to the original Golden League members (except Berlin) and other traditional European meetings, the series includes events in China, Qatar, and the United States.

Editions

Scoring system

Each one of the thirty-two disciplines (sixteen for male athletes, sixteen for females) is staged a total of seven times during the season. The top three athletes at each meeting are awarded points, and in the case of the Final meeting of the discipline the points are doubled.

1st place: 4 points; (Final: 8 points)
2nd place: 2 points; (Final: 4 points)
3rd place: 1 point; (Final: 2 points)