Jim Thorpe in the context of "Athletes"

An athlete is most commonly a person who competes in one or more sports involving physical strength, speed, power, or endurance. Sometimes, the word "athlete" is used to refer specifically to sport of athletics competitors, i.e. including track and field and marathon runners but excluding e.g. swimmers, footballers or basketball players. However, in other contexts (mainly in the United States) it is used to refer to all athletics (physical culture) participants of any sport. For the latter definition, the word sportsperson or the gendered sportsman or sportswoman are also used. A third definition is also sometimes used, meaning anyone who is physically fit regardless of whether they compete in a sport.

Athletes may be professionals or amateurs. Most professional athletes have particularly well-developed physiques obtained by extensive physical training and strict exercise, accompanied by a strict dietary regimen.

The decathlon is a combined event in athletics consisting of 10 track and field events. The word was formed in analogy to the word "pentathlon", from Greek δέκα (déka 'ten') and ἆθλον (áthlon 'contest, prize'). Events are held over two consecutive days and the winners are determined by the combined performance in all. Performance is judged not by the position achieved but rather on a points system in each event, . The decathlon is contested mainly by male athletes, while female athletes typically compete in the heptathlon.

Traditionally, the title of "World's Greatest Athlete" has been given to the person who wins the decathlon. This began when Gustav V of Sweden told Jim Thorpe, "Sir, you are the world's greatest athlete" after Thorpe won the decathlon at the Stockholm Olympics in 1912.

Avery Brundage (/ˈeɪvri ˈbrʌndɪdʒ/; September 28, 1887 – May 8, 1975) was the fifth president of the International Olympic Committee, serving from 1952 to 1972, the only American and first non-European to attain that position. Brundage is remembered as a zealous advocate of amateurism and for his involvement with the 1936 and 1972 Summer Olympics, both held in Germany.

Brundage was born in Detroit in 1887 to a working-class family. When he was five years old, his father moved his family to Chicago and subsequently abandoned his wife and children. Raised mostly by relatives, Brundage attended the University of Illinois to study engineering and became a track star. He competed in the 1912 Summer Olympics, where he participated in the pentathlon and decathlon, but did not win any medals; both events were won by teammate Jim Thorpe. He won national championships in track three times between 1914 and 1918 and founded his own construction business. He earned his wealth from this company and from investments, and never accepted pay for his involvement in sports.