Zuzana Rehák-Štefečeková is a Slovak sports shooter. She won the gold medal in the Women's Trap event at the 2020 Summer Olympics and the silver medal at the 2008 and 2012 Summer Olympics.
Shooting competitions at the 2020 Summer Olympics in Tokyo were originally scheduled from 25 July to 3 August 2020, due to the postponement of the Summer Olympics to 2021, the rescheduled dates were on 24 July to 2 August 2021 at the Asaka Shooting Range. Unlike in 2016, the number of shooters competing across fifteen events at these Games had been reduced from 390 to 360, with an equal distribution between men and women. Furthermore, several significant changes were instituted in the Olympic shooting program, including the substitution of three male-only events, with the mixed team competitions.
The volleyball tournaments at the 2020 Summer Olympics in Tokyo were played between 24 July and 8 August 2021. 24 volleyball teams and 48 beach volleyball teams participated in the tournament. The indoor volleyball competition took place at Ariake Arena in Ariake, and the beach volleyball tournament at Shiokaze Park, in the temporary Shiokaze Park Stadium.
The Women's trap event at the 2020 Summer Olympics took place on 28 and 29 July 2021 at the Asaka Shooting Range.
Hungary competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Hungarian athletes have appeared in every edition of the Summer Olympic Games, except for two occasions. Hungary was not invited to the 1920 Summer Olympics in Antwerp, because of its role in the first World War, and was also part of the Soviet boycott, when Los Angeles hosted the 1984 Summer Olympics.
Croatia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. It was the nation's eighth consecutive appearance at the Summer Olympics.
Denmark competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Danish athletes have appeared in every edition of the Summer Olympic Games, with the exception of the 1904 Summer Olympics in St. Louis. Before the start of the games, DIF sat an official medal goal of 8–10 medals for the Tokyo games.
Greece competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Greek athletes have competed in every Summer Olympic Games of the modern era, alongside Australia, France, Great Britain, and Switzerland. As the progenitor nation of the Olympic Games and in keeping with tradition, Greece entered first at the New National Stadium during the parade of nations at the opening ceremony. Like the other closing ceremonies before, the Greek flag was also raised during the closing ceremony alongside the Japanese and French flags.
Australia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Australia is one of only five countries to have sent athletes to every Summer Olympics of the modern era, alongside Great Britain, France, Greece, and Switzerland.
Italy competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. Italian athletes have appeared in every Summer Olympics edition of the modern era, with the disputed exception of the 1904 Summer Olympics in St. Louis where one Italian may have participated.
Serbia competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was the nation's fifth appearance at the Summer Olympics as an independent nation.
Japan competed as the host nation of the 2020 Summer Paralympics in their capital Tokyo from 24 August to 5 September 2021.
Great Britain competed in the 2020 Summer Paralympics in Tokyo, Japan. Originally scheduled to take place between 21 August and 6 September 2020, the Games were postponed to 24 August to 5 September 2021 as a result of the COVID-19 pandemic. British athletes have competed at all sixteen consecutive Summer Paralympics since 1960.
The men's tournament of water polo at the 2020 Summer Olympics at Tokyo, Japan began on 25 July and ended on 8 August 2021. It was held at the Tokyo Tatsumi International Swimming Center. It was the 27th official appearance of the tournament, which was not held in 1896 and was a demonstration sport in 1904 but otherwise had been held at every Olympics.
China competed at the 2020 Summer Paralympics in Tokyo, Japan from 24 August to 5 September 2021. This was their tenth consecutive appearance at the Summer Paralympics since 1984. China sent 251 athletes to the Games and competed in 20 of the 22 sports except Equestrian and Wheelchair rugby.
Venezuela competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. It was the nation's nineteenth consecutive appearance at the Summer Olympics.
Germany competed at the 2020 Summer Paralympics in Tokyo, Japan, from 24 August to 5 September 2021. This was their sixteenth consecutive appearance at the Summer Paralympics since 1960.
Spain competed at the 2020 Summer Paralympics in Tokyo, Japan from 24 August to 5 September 2021. This was Spain's fourteenth appearance at the Paralympic Games. During the Games, Spanish athletes settled 4 World records and 1 Paralympic record.
Mohammed Al Rumaihi is a Qatari sports shooter. He finished 13th in the men's trap event at the 2020 Summer Olympics.
The mixed coxed four competition at the 2020 Summer Paralympics in Tokyo took place at the Sea Forest Waterway.
