Antigua & Barbuda was represented at the 2006 Commonwealth Games in Melbourne by a contingent comprising 18 sportspersons. Even though the nation did not earn a medal at these Games, the 4 x 100 relay team, featuring N'Kosie Barnes, Ivan Miller, Daniel Bailey, and anchor Brendan Christian, broke the Antigua & Barbuda national 4 x 100 record in the heats with a time of 39.9 seconds, and placed fifth in the finals.
Saint Kitts and Nevis competed in the Olympic Games for the first time at the 1996 Summer Olympics in Atlanta, United States. The country sent ten athletes to compete, all in the sport of athletics. None of the athletes received a medal.
Sri Lanka competed in the 2008 Summer Olympics held in Beijing, People's Republic of China from August 8 to August 24, 2008.The Sri Lankan olympic committee confirmed 4 males and three females have been selected to compete in 5 sports. Later Chinthana Vidanage received a tripartite commission invitation to participate in weightlifting. This now brings the total count to 8 athletes competing in 6 sports.
Zimbabwe sent a team to compete at the 2008 Summer Olympics in Beijing, China.
Yemen competed at the 2008 Summer Olympics in Beijing, China.
Saint Vincent and the Grenadines sent a delegation to compete at the 2008 Summer Olympics in Beijing, China. The year's team included two athletes engaged in track and field events, and was accompanied by the team coach, manager, and chaperone. Saint Vincent and the Grenadines' appearance in Beijing marked its sixth consecutive Olympic appearance since its 1988 debut in Seoul, South Korea, and its smallest delegation to date. Alexander bore the flag of Saint Vincent and the Grenadines in the opening ceremony and neither athlete medaled in their events or advanced to later rounds.
Mauritania competed at the 2008 Summer Olympics which was held in Beijing, China. The country's participation at Beijing marked its seventh appearance in the Summer Olympics since its debut in the 1984 Summer Olympics. The delegation included two track and field athletes, Souleymane Ould Chebal and Bounkou Camara, who were both selected by wildcards after both failed to meet either the "A" or "B" qualifying standards. Chebal was selected as the flag bearer for the opening ceremony. Neither of the Mauritanians progressed beyond the heats.
Grenada competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012. This was the nation's eighth consecutive appearance at the Olympics. Few weeks before the Games, Grenadian athletes trained at Broadbridge Heath Leisure Centre near Horsham, West Sussex.
Saint Kitts and Nevis competed at the 2016 Summer Olympics in Rio de Janeiro, from August 5 to 21, 2016. This was the nation's sixth consecutive appearance at the Summer Olympics.
Swaziland competed at the 2016 Summer Olympics in Rio de Janeiro, Brazil, from 5 to 21 August 2016. The country's participation in Rio de Janeiro marked its tenth appearance at the Summer Olympics since its debut in 1972. The delegation included two track and field athletes: Sibusiso Matsenjwa in the men's 200 metres and Phumlile Ndzinisa in the women's 100 metres. Both athletes participated at the Games through wildcard places since they did not meet the required standards to qualify. Neither athletes progressed past their heats, although Matsenjwa set a new national record.
Great Britain and Northern Ireland competed at the 2019 IAAF World Championships in Doha, from 27 September–6 October 2019. The nation won five medals at the championships – two gold medals, and three silvers. Dina Asher-Smith became the first British person to win three medals at a single championships, winning the women's 200 metres, taking silver in the Women's 100 metres, then getting another silver in the women's 4 × 100 metres relay. Asher-Smith broke the British records in both the 100 m and 200 m. She was Britain's first female sprint champion. Katarina Johnson-Thompson was the only other Briton to win an individual medal, taking the heptathlon gold medal with a British record score. The British men's 4 × 100 metres relay quarter ran a European record of 37.36 seconds to take a silver medal. The women's 4 × 400 metres relay team was briefly upgraded to the bronze medal, but the original medallists Jamaica were reinstated on appeal. Great Britain won the lowest number of medals since its performance at the 2005 World Championships in Athletics.
Belgium competed at the 2019 World Championships in Athletics in Doha, Qatar from 27 September to 6 October 2019. Belgium has entered 29 athletes. The country finished in 24th place in the medal table.
Canada is scheduled to compete at the 2022 World Championships in Athletics in Eugene, Oregon, United States, from July 15−24, 2022.
Jamaica competed at the 2022 World Athletics Championships in Eugene, United States, from 15 to 24 July 2022. The Jamaica Athletics Administrative Association entered 65 athletes.
New Zealand sent a team of 20 athletes to the 2022 World Athletics Championships. Their best result was fourth place, achieved by Tom Walsh in the men's shot put.
Belgium will compete at the 2022 European Championships in Munich from August 11 to August 22, 2022.
Nigeria competed at the 2022 World Athletics Championships in Eugene, United States, from 15 to 24 July 2022. The Athletics Federation of Nigeria entered 24 athletes.
New Zealand competed at the 2001 World Championships in Athletics held in Edmonton, Canada. They did not have any athletes placed in the top 8 in any event.
New Zealand competed at the 1999 World Championships in Athletics held in Seville, Spain. Their best performances were 5th and 7th.
New Zealand competed at the 1997 World Championships in Athletics held in Athens, Greece. The team won one medal, a gold, which was won by Beatrice Faumuina in the discus, which placed them equal 22nd on the medal table. This was New Zealand's first medal at a World Athletics Championships.
