Japan competed at the 1984 Summer Olympics in Los Angeles, United States. Japan returned to the Games after participating in the American-led boycott of the 1980 Summer Olympics. 226 competitors, 174 men and 52 women, took part in 147 events in 22 sports.
West Germany competed at the 1984 Summer Olympics in Los Angeles, United States. West Germany had joined the American-led boycott of the 1980 Summer Olympics four years previously. 390 competitors, 267 men and 123 women, took part in 194 events in 25 sports.
The Netherlands competed at the 1984 Summer Olympics in Los Angeles, United States. 136 competitors, 82 men and 54 women, took part in 74 events in 15 sports.
Canada competed at the 1984 Summer Olympics in Los Angeles, United States, held from 28 July to 12 August 1984. Canada returned to the Summer Games after having participated in the American-led boycott of the 1980 Summer Olympics. 408 competitors, 257 men and 151 women, took part in 193 events in 23 sports.
Spain competed at the 2000 Summer Olympics in Sydney, Australia. 321 competitors, 216 men and 105 women, took part in 165 events in 27 sports.
Canada competed at the 2000 Summer Olympics in Sydney, Australia, held from 15 September to 1 October 2000. 294 competitors, 150 men, and 144 women, took part in 175 events in 29 sports.
Kazakhstan competed at the 2000 Summer Olympics in Sydney, Australia. 130 competitors, 86 men and 44 women, took part in 104 events in 17 sports.
Greece competed at the 2000 Summer Olympics in Sydney, Australia. Greek athletes have competed in every Summer Olympic Games. At the closing ceremony, a Greek segment was performed, as the country hosted the next Olympics in Athens four years later. Two Greek flags were also hoisted in preparation for the handover, with the Greek national anthem played once.
The Soviet Union (USSR) competed, for the last time before its dissolution, at the 1988 Summer Olympics in Seoul. 481 competitors, 319 men and 162 women, took part in 221 events in 27 sports. Athletes from 12 of the ex-Soviet republics would compete as the Unified Team at the 1992 Summer Olympics, and each nation would field independent teams in subsequent Games.
France competed at the 1988 Summer Olympics in Seoul, South Korea. 266 competitors, 192 men and 74 women, took part in 167 events in 23 sports.
The Unified Team at the 1992 Summer Olympics in Barcelona, Spain, was a joint team consisting of twelve of the fifteen former Soviet republics that chose to compete together; the states of Estonia, Latvia, and Lithuania competed separately. The team has been informally called the Commonwealth of Independent States team, though Georgia was not yet a member of the CIS when it competed as part of the Unified Team. Selected athletes from the Baltic states also competed on the Unified Team. It competed under the IOC country code EUN. A total of 475 competitors, 310 men and 165 women, took part in 234 events in 27 sports.
Japan competed at the 1992 Summer Olympics in Barcelona, Spain. 256 competitors, 175 men and 81 women, took part in 166 events in 24 sports.
The Czech and Slovak Federative Republic competed as a nation for the last time at the 1992 Summer Olympics in Barcelona, Spain. After the dissolution of Czechoslovakia at the end of 1992, the Czech Republic and Slovakia would compete as independent nations at the 1996 Summer Olympics. 208 competitors, 146 men and 62 women, took part in 121 events in 25 sports.
South Korea competed as Korea at the 1996 Summer Olympics in Atlanta, United States. 300 competitors, 189 men and 111 women, took part in 160 events in 25 sports.
Japan competed at the 1996 Summer Olympics in Atlanta, United States. 306 competitors, 157 men and 149 women, took part in 168 events in 27 sports.
The People's Republic of China competed at the 1996 Summer Olympics in Atlanta, United States. 294 competitors, 111 men and 183 women, took part in 155 events in 25 sports.
Australia competed at the 1996 Summer Olympics in Atlanta, United States. Australia sent 417 athletes, 250 men and 167 women, to the Atlanta Games.
Canada competed at the 1996 Summer Olympics in Atlanta, United States, held from 19 July to 4 August 1996. 303 competitors, 152 men and 151 women, took part in 189 events in 25 sports.
Romania competed at the 1996 Summer Olympics in Atlanta, United States. 165 competitors, 98 men and 67 women, took part in 122 events in 18 sports.
Mexico competed at the 1980 Summer Olympics in Moscow, USSR. 45 competitors, 36 men and 9 women, took part in 43 events in 12 sports.
