At the 2004 Summer Olympics, the athletics events were held at the Athens Olympic Stadium from August 18 to August 29, except for the marathons, the race walks, and the shot put. A total of 46 events were contested, of which 24 by male and 22 by female athletes.
Athletics at the 2008 Summer Olympics were held during the last ten days of the games, from August 15 to August 24, 2008, at the Beijing National Stadium. The Olympic sport of athletics is split into four distinct sets of events: track and field events, road running events, and racewalking events.
Tuvshinbayar Naidan is a Mongolian former professional judoka. He is the 2008 Olympic Champion, 2012 Olympic silver medalist, 2014 Asian games champion, 2017 World Championships bronze medalist, 2016 Asian Championships gold medalist, 2007 silver medalist and two-time bronze medalist in –100 kg division. Naidan is serving a sixteen-year jail term for a 2021 fatal assault on a fellow judoka and childhood friend Erdenebileg Enkhbat.
Mongolia first participated at the Olympic Games in 1964, and has sent athletes to compete in all but one Summer Olympic Games since then, being part of the boycott of the 1984 Summer Olympics led by the Soviet Union. Mongolia has also participated in the Winter Olympic Games since 1964, missing only the 1976 Winter Games.
Kosovo made its Olympic debut as a member state in 2016. Its team is organized by the Olympic Committee of Kosovo (OCK), created in 1992 and recognized by the International Olympic Committee on 9 December 2014. It won its first medal in its debut appearance in 2016, when judoka Majlinda Kelmendi took gold in the women's -52 kg category. In the 2020 Tokyo Olympics, Nora Gjakova won gold in the women's judo -57 kg class, and Distria Krasniqi won gold in the women's judo -48 kg class.
Marie Muller is a Luxembourger judoka.
Kayla Harrison is an American professional mixed martial artist and multiple Olympic gold medalist and world champion judoka. She currently competes in the Women’s Bantamweight division in the Ultimate Fighting Championship (UFC). As of April 16, 2024, she is #4 in the UFC women's bantamweight rankings, and as of May 7, 2024, she is #14 in the UFC women's pound-for-pound rankings.
Majlinda Kelmendi is a Kosovan-Albanian former judoka and judo coach.
Egypt competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012, sending one of its largest delegations ever. A total of 110 Egyptian athletes participated in 83 events across 20 sports, with more women taking part than ever before. The nation's flagbearer in the opening ceremonies was Hesham Mesbah, a judoka who was Egypt's only medalist at the 2008 Summer Olympics. Egypt won two medals during the course of the Games: Alaaeldin Abouelkassem earned silver in the men's foil, becoming the first competitor from an African nation to win a fencing medal, while Karam Gaber captured silver in the men's 84 kg Greco-Roman wrestling event. Two Egyptian weightlifters were awarded medals retroactively, after higher-ranked competitors were disqualified for doping: Abeer Abdelrahman took silver in the women's 75 kg event, while Tarek Yehia, received bronze in the men's 85 kg event. Among other achievements, Mostafa Mansour was the nation's first competitor in sprint canoeing while fencer Shaimaa El-Gammal became the first Egyptian female to appear in four editions of the Olympics.
Rafaela Lopes Silva is a Brazilian judoka. She won gold medals at the World Judo Championships of 2013 and 2022 and at the 2016 Summer Olympics in the –57 kg weight division. Currently, she occupies the graduation third sergeant in the Navy of Brazil and integrates the Center of Physical Education Admiral Nunes (CEFAN), the Military Sports Department.
The Oceanic island nation of Palau competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This was the nation's fourth consecutive appearance at the Olympics.
Nauru 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 fifth appearance in the Summer Olympics since its debut at the 1996 Summer Olympics. The delegation consisted of two participants: Sled Dowabobo in the men's lightweight judo contest and Itte Detenamo in the men's super-heavyweight weightlifting competition. Dowabobo qualified as one of Oceania's highest ranked judo competitors while Detenamo made the Games based on his qualifying performance. Detenamo was the flag bearer for both the opening and closing ceremonies. Dowabobo was eliminated by his opponent Navruz Jurakobilov in the round of 64 and Detemano was 14th in his event.
Wojdan Ali Seraj Abdulrahim Shahrkhani is a Saudi judoka who was one of two women selected to represent the Kingdom of Saudi Arabia at the 2012 Summer Olympics. She was the first woman to represent Saudi Arabia at the Olympics.
Tsedevsürengiin Mönkhzaya is a Mongolian retired judoka. At the 2012 Summer Olympics she competed in the Women's 63 kg. Her first and quickest performance was on the fourth day of the 2012 Summer Olympics on 31 July 2012, during the elimination round of 32 matches. In three rounds totaling only 46 seconds, she expeditiously defeated Palau's 35-year-old Jennifer Anson. In that match, Munkhzaya Tsedevsuren scored Ippon, the perfect score of 110 to 0. In the 16th elimination round, she defeated Finland's Johanna Ylinen with a score of 100 to 0. In the quarterfinal, she defeated France's Gévrise Émane and advanced to the semifinal of Table B where she lost to Slovenia's Urška Žolnir who went on to win the gold. Munkhzaya Tsedevsuren fought for the bronze and lost to Japan's Yoshie Ueno.
Esther San Miguel Busto is a Spanish judoka. She has won six national titles and two European titles for the half-heavyweight division (78 kg). She is also a bronze medalist at the 2003 World Judo Championships in Osaka, Japan, and has captured a total of twenty-seven World Cup medals, including eight golds. San Miguel is a member of Centro de Alto Rendimiento Madrid Judo Club, and is coached by Sacramento Moyano.
Judo at the 2020 Summer Olympics in Tokyo featured around 393, 128 judoka competing in 15 events, seven each for both men and women as well as a new mixed team event. The 2020 Summer Olympics were postponed due to the COVID-19 pandemic, and the judo competitions were held in July 2021 at Nippon Budokan.
Mongolia competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation made its debut in 1964, Mongolian athletes had appeared in every edition of the Summer Olympic Games, with the exception of the 1984 Summer Olympics in Los Angeles, because of its partial support to the Soviet boycott.
Fiji competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. Since the nation's debut in 1956, Fijian athletes had taken part in every edition of the Summer Olympic Games, except for two occasions. Fiji failed to register any athletes at the 1964 Summer Olympics in Tokyo, and joined the American-led boycott when Moscow hosted the 1980 Summer Olympics.
Shira Rishony is an Israeli Olympic lightweight judoka. She competed at U48 kg. She competed for Israel at the 2016 Summer Olympics and at the 2020 Summer Olympics.
The women's middleweight boxing event at the 2020 Summer Olympics took place between 28 July and 8 August 2021 at the Ryōgoku Kokugikan. 17 boxers from 17 nations competed, Khadija El-Mardi from Morocco having withdrawn before the competition began.
Palau 
