Mexico competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's twentieth appearance at the Olympics, since its debut in 1900. Comité Olímpico Mexicano sent the nation's largest delegation to the Games since 1992. A total of 109 athletes, 59 men and 50 women, competed in 20 sports. Football was the only team-based sport in which Mexico had its representation in these Olympic Games. There was only a single competitor in fencing, shooting, and weightlifting.
El Salvador competed at the 2004 Summer Olympics in Athens, Greece, from 13 to 29 August 2004. This was the nation's eighth appearance at the Olympics.
El Salvador competed at the 2000 Summer Olympics in Sydney, Australia, from 15 September to 1 October 2000. This was the nation's seventh appearance at the Olympics.
El Salvador competed at the 1996 Summer Olympics in Atlanta, Georgia, United States, from 19 July to 4 August 1996. This was the nation's sixth appearance at the Olympics.
El Salvador competed at the 1992 Summer Olympics in Barcelona, Spain, from 25 July to 9 August 1992. This was the nation's fifth appearance at the Olympics.
El Salvador competed at the 1988 Summer Olympics in Seoul, South Korea, from 17 September to 2 October 1988. This was the nation's fourth appearance at the Olympics.
El Salvador competed at the 1972 Summer Olympics in Munich, West Germany, from 28 July to 12 August 1984. This was the nation's second appearance at the Olympics.
El Salvador competed in the Olympic Games for the first time at the 1968 Summer Olympics in Mexico City, Mexico, from 12 to 27 October 1968.
Colombia first formally participated at the Olympic Games in 1932, and has sent athletes to compete in all but one edition of the Summer Olympic Games since then, missing only the 1952 Games. Colombian athletes have won a total of 34 Olympic medals in eight different sports, with weightlifting and cycling as the most successful ones. Colombia is the third most successful South American country at the Olympic Games, after Brazil and Argentina respectively. The Colombian Olympic Committee was created in 1936 and recognised by the International Olympic Committee in 1948.
El Salvador first competed in the Olympic Games at the 1968 Summer Olympics in Mexico City, Mexico. It has participated in every Games of the Olympiad since that time, excluding those held in 1976 and 1980, when the nation joined the American-led boycott in protest of the Soviet invasion of Afghanistan. They have never competed in the Olympic Winter Games. El Salvador has not earned a medal at any Olympic Games.
El Salvador competed at the 2008 Summer Olympics in Beijing, China, from 8 to 24 August 2008. This was the nation's ninth appearance at the Olympics.
Mexico competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's twenty-second appearance at the Olympics since its debut in 1900. Comité Olímpico Mexicano sent a total of 102 athletes to the Games, 64 men and 38 women, to compete in 23 sports. Men's football was the only team sport in which Mexico was represented at these Olympic Games. There was only a single competitor in badminton, sprint canoeing, and table tennis.
Chile competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This nation has competed at every Olympic Games, except the 1932 Summer Olympics in Los Angeles, and the 1980 Summer Olympics in Moscow because of the United States boycott.
Panama competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012. This was the nation's sixteenth appearance at the Olympics since its debut in 1920. Panama did not compete on four occasions, including the 1980 Summer Olympics in Moscow, because of its partial support of the United States boycott.
Puerto Rico competed at the 2012 Summer Olympics in London, United Kingdom from July 27 to August 12, 2012. This was the nation's seventeenth consecutive appearance at the Olympics.
El Salvador competed at the 2012 Summer Olympics in London, United Kingdom, from 27 July to 12 August 2012. This was the nation's tenth appearance at the Olympics.
Guatemala competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fourteenth appearance at the Summer Olympics since its debut in 1952, despite failing to register any athletes in three other editions.
El Salvador competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's eleventh appearance at the Summer Olympics, although it first competed in 1968.
Costa Rica competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. This was the nation's fifteenth appearance at the Summer Olympics, since its debut in 1936.
Peru competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's official debut in 1936, Peruvian athletes have appeared in every edition of the Summer Olympic Games throughout the modern era. Peru failed to register any athletes at the 1952 Summer Olympics in Helsinki.
