Saint Kitts and Nevis first participated at the Olympic Games in 1996, and have competed in every Summer Olympic Games since then. The country has never won an Olympic medal and has not competed at the Winter Olympic Games.
The Maldives first participated at the Olympic Games in 1988. It has sent athletes to compete in every Summer Olympic Games since, but has not participated in the Winter Olympic Games.
The Asian island nation of the Maldives competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's seventh consecutive appearance at the Olympics, the delegation consisted of two athletes each in track and field and swimming. For the first time since their debut at the Summer Olympics, the Maldives entered one badminton player into the Olympics. Mohamed Ajfan Rasheed, the inaugural Maldivian badminton player to compete at the Olympics, was the nation's flag bearer at the opening ceremony with Azneem Ahmed carrying the Maldivian flag in the closing ceremony. All the athletes qualified for the games through wild cards from International Association of Athletic Federations FINA and Badminton World Federation. The Maldives however, has yet to win its first ever Olympic medal.
Tuvalu competed at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. The country's participation at London marked its second appearance in the Summer Olympics since its debut at the 2008 Summer Olympics. The delegation consisted of three competitors: two short-distance runners, Tavevele Noa and Asenate Manoa, and one weightlifter, Tuau Lapua Lapua. All three qualified for the games through wildcard places because they did not meet the qualification standards. Lapua was the flag bearer for the opening ceremony while Manoa carried it at the closing ceremony. Noa and Manoa failed to advance beyond the preliminary rounds of their events although the latter established a new national record for the women's 100 metres, while Lapua placed 12th in the men's featherweight weightlifting competition.
Pernille Blume is a Danish former swimmer specializing in sprint freestyle events. She competed at the 2012 Summer Olympics. At the 2016 Summer Olympics she was the gold medalist in the women's 50 metre freestyle and won a bronze medal in the women's 4 × 100 metre medley relay where she swam the freestyle leg of the relay in both the prelims and the final. She also competed at the 2020 Summer Olympics, winning a bronze medal in the 50 metre freestyle.
Afghanistan competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The country's participation at Rio de Janeiro marked its fourth consecutive appearance at the Summer Olympics and fourteenth in total. Afghanistan had officially made its debut in 1936 and missed five editions since then. Rohullah Nikpai, who had previously won a medal for Afghanistan in taekwondo, did not participate. Afghanistan failed to earn a single Olympic medal in Rio for the first time since 2004.
Filippo Tortu is an Italian sprinter with a personal best in the 100 meters of 9.99, the first Italian in history to break the 10 seconds barrier. He won the gold medal in 100 metres at the 2017 European U20 Championships and the silver medal at the 2016 World U20 Championships. He ran the anchor leg in the 4×100m relay of the Italian team that won the gold medal at the 2020 Summer Olympics and at the 2024 European Championships, and the silver medal at the 2023 World Athletics Championships.
Kamia Yousufi is an Afghan female sprinter. Her parents are originally from Kandahar.
Malaysia 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. Since the nation's official debut in 1956 under the name Malaya, Malaysian athletes have appeared in every edition of the Summer Olympic Games, except for Moscow 1980 in Moscow because of the United States-led boycott.
Yuji Nishida is a Japanese left-handed volleyball player. As of July 2024, Nishida plays for Panasonic Panthers at club level.
The men's 100 metres event at the 2020 Summer Olympics took place on 31 July and 1 August 2021 at the Olympic Stadium. 84 athletes were expected to compete; 27 nations used universality places to enter athletes in addition to the 56 qualifying through standard time or ranking. 78 athletes from 59 nations competed. Marcell Jacobs won the gold medal, establishing twice, semifinal and final, the new European record, as well as collecting Italy's first medal in the men's 100 metres. The United States extended its podium streak in the event to six Games with Fred Kerley's silver - after he placed only third at the U.S. trials. Canadian Andre De Grasse won his second consecutive bronze medal in the 100 metres, while running a personal best. With Usain Bolt retired, Jamaica's three Games gold medal streak ended.
Djibouti 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. This was the nation's ninth appearance at the Summer Olympics; Djibouti did not field any athletes at the 2004 Summer Olympics in Athens. The delegation consisted of four athletes, three men and one women, competing in five events across three sports. Two athletes participated in the judo and swimming tournaments: Aden-Alexandre Houssein and Houssein Gaber Ibrahim. Athlete Ayanleh Souleiman, a returning competitor from the 2016 Rio Olympics competed in the men's 800 metres and 1500 metres events. Souhra Ali Mohamed, who had previously participated in the 2012 Summer Olympics competed in the women's 1500 metres event. Houssein lead the Djiboutian squad as the flagbearer in the opening ceremony with Souhra being the flagbearer for the closing ceremony.
Ebrahima Camara is a Gambian athlete. He competed in the men's 100 metres event at the 2019 World Athletics Championships.
American Samoa competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from July 24 to August 9, 2020, the Games were postponed to July 23 to August 8, 2021, because of the COVID-19 pandemic. The country's participation in Tokyo marked its ninth consecutive appearance in the Summer Olympics since its debut in the 1988 Summer Olympics.
Nauru 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. The country's participation in Tokyo marked its seventh appearance at the Summer Olympics since its debut in 1996.
Saint Kitts and Nevis competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the event was postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. This was the nation's seventh appearance at the Summer Olympics since their debut in 1996. The delegation consisted of two athletes, competing in athletic events; Jason Rogers and Amya Clarke. For the first time, in an effort to promote gender equality, two flagbearers, one male and one female were allowed at the Olympics. Both athletes from Saint Kitts and Nevis bore the national flag at the opening ceremony. Saint Kitts and Nevis did not win any medals during the Tokyo Olympics. Rogers ranked third in the first round of the men's 100 metres and advanced to the semifinals where he was eliminated. Clarke also ranked third in her preliminary round of the women's 100 metres and advanced to round 1 where she ranked 7th and was eliminated.
The Maldives competed at the 2020 Summer Olympics in Tokyo which were held from 23 July to 8 August 2021. Originally scheduled to take place from 24 July to 9 August 2020, the event was postponed due to the COVID-19 pandemic. This was the nation's ninth appearance at the Summer Olympics since its debut in 1988. The delegation consisted of four athletes, two men and two women, competing in four events across three sports. Two athletes participated in the swimming tournament: Mubal Azzam Ibrahim and Aishath Sajina. Athlete Hassan Saaid, a returning competitor from the 2016 Rio Olympics competed in the men's 100 m. Fathimath Nabaaha Abdul Razzaq was the first badminton player the Maldives entered into the Olympic tournament since the 2012 London Olympics. For the first time, in an effort to promote gender equality, two flagbearers, one male and one female were allowed at the Olympics. Nabaaha and Mubal lead the Maldivian squad as the flagbearers in the opening ceremony. The Maldives, however, has yet to win its first ever Olympic medal.
Kiribati competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, it was postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. The country's participation in Tokyo marked its fifth appearance at the Summer Olympics since its debut in 2004.
Isaiah Champion Jewett is an American middle-distance runner who specializes in the 800 metres. He finished second in the event at the NACAC U23 Championships in 2019, and he won a national title at the 2021 NCAA Outdoor Championships while competing for the University of Southern California. Jewett represented the United States at the 2020 Summer Olympics.
Tuvalu competed at the 2020 Summer Olympics in Tokyo, which were held from 23 July to 8 August 2021. Originally scheduled to take place from 24 July to 9 August 2020, the event was postponed due to the COVID-19 pandemic. Their participation marked their fourth consecutive appearance at the Summer Olympics since their debut at the 2008 Summer Olympics. The Tuvaluan delegation consisted of the sprinters Karalo Maibuca and Matie Stanley, both of whom were competing in their first Olympics. Neither Maibuca nor Stanley managed to progress beyond the preliminary rounds of their events, although Maibuca set a Tuvaluan national record of 11.42 seconds in the men's 100 metres.
Afghanistan 
