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World Records In Athletics
World records in athletics are ratified by World Athletics. Athletics records comprise the best performances in the sports of track and field, road running and racewalking. Records are kept for all events contested at the Olympic Games and some others. Unofficial records for some other events are kept by track and field statisticians. The only non- metric track distance for which official records are kept is the mile run. Criteria The criteria which must be satisfied for ratification of a world record are defined by World Athletics in Part III of the Competition Rules. These criteria also apply to national or other restricted records and also to performances submitted as qualifying marks for eligibility to compete in major events such as the Olympic Games. The criteria include: * The dimensions of the track and equipment used must conform to standards. In road events, the course must be accurately measured, by a certified measurer. * Except in road events (road running and r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
100 M Final Berlin 2009
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Assistance
In track and field, wind assistance is the benefit that an athlete receives during a race or event as registered by a wind gauge. Wind is one of many forms of weather that can affect sport. Due to a tailwind helping to enhance the speed of the athlete in events like certain sprint races (100 and 200 metres), 100/110 metres hurdles, the triple jump and the long jump, there is a limit to how much assisting wind the athlete may perform under if the performance is to establish a record. If a tail wind exceeds the result cannot be registered as a record on any level. However, the results within that competition still are valid because all athletes in a race would get equal assistance, and in field events it is just the luck of the circumstance at the moment of the attempt. The wind assistance maximums are only in regard to the validation of a record. The exceptions are the combined events like heptathlon and decathlon. Here, the total score may be accepted even though some of the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle-distance Running
Middle-distance running events are track races longer than sprints, up to 3000 metres. The standard middle distances are the 800 metres, 1500 metres and mile run, although the 3000 metres may also be classified as a middle-distance event. The 1500 m came about as a result of running laps of a 400 m outdoor track or laps of a 200 m indoor track, which were commonplace in continental Europe in the 20th century.1500 m – Introduction . Retrieved on 5 April 2010. Events 500 metres A very uncommon middle-distance event that is sometimes run by sprinters for muscle stamina training.600 yards This was a popular distance, particularly ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAAF Golden League
The IAAF Golden League was an annual series of outdoor track and field meetings organised by the International Association of Athletics Federations (IAAF). Athletes who won specific events at all of the series meetings were awarded a jackpot prize, sometimes given in gold bars, which inspired the series name. The competition began with seven meetings and it lasted for twelve years as the IAAF's top tier of one-day meetings. Within the IAAF's global circuit, athletes received additional points for their performances at the Golden League for the IAAF Grand Prix (1998–2002), IAAF World Outdoor Meetings (2003–2005), then IAAF World Athletics Tour (2006–2009). The Golden League was replaced in 2010 by the Diamond League, which marked an expansion to fourteen seasonal meetings covering all track and field events except the hammer throw. The origins of the Golden League trace back to the Golden Four series that ran from 1993 to 1997, comprising four top level European meetings on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond League
The Diamond League is an annual series of elite track and field athletic competitions comprising fourteen of the best invitational athletics meetings. The series sits in the top tier of the World Athletics (formerly known as the IAAF) one-day meeting competitions. The inaugural season was in 2010. It was designed to replace the IAAF Golden League, which had been held annually since 1998. The full sponsorship name is the Wanda Diamond League, the result of an agreement with Wanda Group that was announced in December 2019. 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 competitions, the series now includes events in China, Qatar, Morocco, and the United States. Beginning in March 2022, after the 2022 Rus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponsor (commercial)
Sponsoring something (or someone) is the act of supporting an event, activity, person, or organization financially or through the provision of products or services. The individual or group that provides the support, similar to a benefactor, is known as the sponsor. Definition Sponsorship is a cash and/or in-kind fee paid to a property (typically in sports, arts, entertainment or causes) in return for access to the exploitable commercial potential associated with that property. While the sponsoree (property being sponsored) may be nonprofit, unlike philanthropy, sponsorship is done with the expectation of a commercial return. While sponsorship can deliver increased awareness, brand building and propensity to purchase, it is different from advertising. Unlike advertising, sponsorship can not communicate specific product attributes. Nor can it stand alone, as sponsorship requires support elements. Theories A range of psychological and communications theories have been used to expl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effects Of High Altitude On Humans
The effects of high altitude on humans are mostly the consequences of reduced partial pressure of oxygen in the atmosphere. The oxygen saturation of hemoglobin determines the content of oxygen in blood. After the human body reaches around above sea level, the saturation of oxyhemoglobin begins to decrease rapidly. However, the human body has both short-term and long-term adaptations to altitude that allow it to partially compensate for the lack of oxygen. There is a limit to the level of adaptation; mountaineers refer to the altitudes above as the death zone, where it is generally believed that no human body can acclimatize. At extreme altitudes, the ambient pressure can drop below the vapor pressure of water at body temperature, but at such altitudes even pure oxygen at ambient pressure cannot support human life, and a pressure suit is necessary. A rapid depressurisation to the low pressures of high altitudes can trigger altitude decompression sickness. Effects as a functi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sestriere
Sestriere (/se'strjɛre/) ( oc, Sestrieras, pms, Ël Sestrier, french: Sestrières) is a ski resort in Piedmont, Italy, a ''comune'' (municipality) of the Metropolitan City of Turin. It is situated in Val Susa, from the French border. Its name derives from Latin: ''ad petram sistrariam'', that is at sixty Roman miles from Turin. Geography Sestriere has 929 inhabitants as of 1 January 2021 and is located on the pass that links Val Chisone and Val Susa, at above mean sea level The village is completely surrounded by mountains, which have been exploited to build one of the biggest ski resorts in Italy. The main mountains around Sestriere are: Monte Fraiteve in the north-east, Monte Sises , Punta Rognosa di Sestriere and Monte Motta in the south-east. Sestriere is divided into several smaller hamlets: Sestriere Colle, on the pass top, Sestriere Borgata, in Val Chisone, Champlas du Col and Champlas Janvier, in Val Susa. History Formerly, the pass belonged to the munic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico City
Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of . The city has 16 boroughs or ''demarcaciones territoriales'', which are in turn divided into neighborhoods or ''colonias''. The 2020 population for the city proper was 9,209,944, with a land area of . According to the most recent definition agreed upon by the federal and state governments, the population of Greater Mexico City is 21,804,515, which makes it the sixth-largest metropolitan area in the world, the second-largest urban agglomeration in the Western Hemisphere (behind São Paulo, Brazil), and the largest Spanish-speaking city (city proper) in the world. Greater Mexico City has a GDP of $411 billion in 2011, which makes it one of the most productive urb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fully Automatic Timing
Fully automatic time (abbreviated FAT) is a form of race timing in which the clock is automatically activated by the starting device, and the finish time is either automatically recorded, or timed by analysis of a photo finish. The system is commonly used in track and field as well as athletic performance testing, horse racing, dog racing, bicycle racing, rowing and auto racing. In these fields a photo finish is used. It is also used in competitive swimming, for which the swimmers themselves record a finish time by touching a touchpad at the end of a race. In order to verify the equipment, or in case of failure, a backup system (typically manual) is usually used in addition to FAT. Technology In races started by a starting pistol, a sensor is typically attached to the gun which sends an electronic signal to the timing system when fired. An alternative starting light or sound which is electronically triggered, such as a horn, is typically also wired to the timing system. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photo Finish
A photo finish occurs in a sporting race when multiple competitors cross the finishing line at nearly the same time. As the naked eye may not be able to determine which of the competitors crossed the line first, a photo or video taken at the finish line may be used for a more accurate check. Photo finishes make it less likely that officials will declare a race a dead heat. Finish line photos are still used in nearly every modern racing sport. Although some sports use electronic equipment to track the racers during a race, a photo is considered the most important evidence in selecting the winner. They are especially important during close races, but they are also used to assign official times to each competitor during any race. Method of capture Strip photography Photo-finish cameras were developed during the 1940s and 1950s as a means of regulating the racing industry and to reduce cheating. Betting on races became increasingly popular during the middle decades of the twentieth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Average
In ordinary language, an average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list (the arithmetic mean). For example, the average of the numbers 2, 3, 4, 7, and 9 (summing to 25) is 5. Depending on the context, an average might be another statistic such as the median, or mode. For example, the average personal income is often given as the median—the number below which are 50% of personal incomes and above which are 50% of personal incomes—because the mean would be higher by including personal incomes from a few billionaires. For this reason, it is recommended to avoid using the word "average" when discussing measures of central tendency. General properties If all numbers in a list are the same number, then their average is also equal to this number. This property is shared by each of the many types of average. Another universal property is monotonicity: if two lists of numbers ''A'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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