The Soviet Union (USSR) competed at the 1972 Summer Olympics in Munich, West Germany. 371 competitors, 298 men and 73 women, took part in 180 events in 22 sports.
The Soviet Union (USSR) was the host nation of the 1980 Summer Olympics in Moscow. 489 competitors, 340 men and 149 women, took part in 202 events in 23 sports.
Bulgaria competed at the 1980 Summer Olympics in Moscow, USSR. 271 competitors, 183 men and 88 women, took part in 151 events in 20 sports.
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.
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.
Ukraine competed in the Summer Olympic Games as an independent nation for the first time at the 1996 Summer Olympics in Atlanta, United States. Previously, Ukrainian athletes competed for the Unified Team at the 1992 Summer Olympics. 231 competitors, 146 men and 85 women, took part in 148 events in 21 sports.
Athletes from East Germany competed at the 1972 Summer Olympics in Munich, West Germany. 297 competitors, 231 men and 66 women, took part in 161 events in 18 sports.
Romania competed at the 1976 Summer Olympics in Montreal, Canada. 157 competitors, 103 men and 54 women, took part in 92 events in 11 sports.
Bulgaria competed at the 1976 Summer Olympics in Montreal, Quebec, Canada. 158 competitors, 105 men and 53 women, took part in 108 events in 14 sports.
The Soviet Union (USSR) competed at the 1964 Summer Olympics in Tokyo, Japan. 317 competitors, 254 men and 63 women, took part in 154 events in 19 sports.
Athletes from East Germany and West Germany competed together as the United Team of Germany for the last time at the 1964 Summer Olympics in Tokyo, Japan. 337 competitors, 275 men and 62 women, took part in 159 events in 19 sports.
The Soviet Union (USSR) competed in the Olympic Games for the first time at the 1952 Summer Olympics in Helsinki, Finland. 295 competitors, 255 men and 40 women, took part in 141 events in 18 sports.
The Soviet Union (USSR) competed at the 1956 Summer Olympics in Melbourne, Australia. 272 competitors, 233 men and 39 women, took part in 135 events in 17 sports. the Netherlands, Spain, the Netherlands Antilles, Egypt, Lebanon, Cambodia, Iraq and Switzerland protested against this by boycotting the games. As a partial support to the Dutch-led boycott, Soviet athletes under the Olympic flag instead of the national flag.
The Soviet Union (USSR) competed at the 1960 Summer Olympics in Rome, Italy. 283 competitors, 233 men and 50 women, took part in 145 events in 17 sports.
The Soviet Union (USSR) competed at the 1968 Summer Olympics in Mexico City. 312 competitors, 246 men and 66 women, took part in 164 events in 18 sports.
Hungary competed at the 1968 Summer Olympics in Mexico City, Mexico. 167 competitors, 135 men and 32 women, took part in 116 events in 15 sports.
Germany was the host nation and top medal recipient at the 1936 Summer Olympics in Berlin. 433 competitors, 389 men and 44 women, took part in 143 events in 22 sports.
This is a chronological summary of the major events of the 2020 Summer Olympics in Tokyo, Japan, which was postponed to 2021 due to the COVID-19 pandemic. The first matches in the group stages of the football and softball events was held on 21 July. The opening ceremony was scheduled two days later on 23 July. The last day of competition and the closing ceremony was on 8 August. However, the Games was referred to by its original date in all scheduled events in order to avoid confusion in future years. With the area under a state of emergency because of the pandemic, the Games were held largely behind closed doors with no spectators permitted.
Russian Empire (1900–1912)
Estonia (1920–1936, 1992–)
Latvia (1924–1936, 1992–)
Lithuania (1924–1928, 1992–)
Unified Team (1992)
Armenia (1994–)
Belarus (1994–)
Georgia (1994–)
Kazakhstan (1994–)
Kyrgyzstan (1994–)
Moldova (1994–)
Ukraine (1994–)
Uzbekistan (1994–)
Azerbaijan (1996–)
Tajikistan (1996–)
Turkmenistan (1996–)
ROC (2020–2022)
Individual Neutral Athletes (2024)
