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The Association of Tennis Professionals (ATP) is the governing body of the men's professional tennis circuits – the ATP Tour and the ATP Challenger Tour.It was formed in September 1972 by Donald Dell, Jack Kramer, and Cliff Drysdale to protect the interests of professional tennis players, and Drysdale became the first president.
Adenosine triphosphate (ATP) is a nucleoside triphosphate [2] that provides energy to drive and support many processes in living cells, such as muscle contraction, ...
ATP is a molecule found only in and around living cells, and as such it gives a direct measure of biological concentration and health. ATP is quantified by measuring the light produced through its reaction with the naturally-occurring firefly enzyme luciferase using a luminometer.
The ATP Tour (known as ATP World Tour between January 2009 and December 2018) is the sole worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals (ATP) founded in 1990 that replaced the earlier dual Grand Prix Circuit and WCT Circuit.
The ATP Race is an annual performance-based points race to determine the qualifiers for the year-end championship, in addition to the year-end No. 1 singles player and doubles team. The race, initially called the "ATP Champions Race", was introduced by the ATP for the 2000 season as part of their "21st Century Tennis" strategy announced in 1999 ...
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The ATP 500 tournaments (previously known as the ATP World Tour 500 tournaments, ATP International Series Gold, and ATP Championship Series) [1] are the fourth highest tier of annual men's tennis tournament after the four Grand Slam tournaments, ATP Finals, and the ATP Masters 1000.
The ATP Finals is the season-ending championship of the ATP Tour. It is the most significant tennis event in the men's annual calendar after the four majors , as it features the top eight singles players and top eight doubles teams based on their results throughout the season.