Brunei, as Brunei Darussalam, competed at the 2004 Summer Olympics in Athens, Greece, which took place between 13 and 29 August 2004. The country's participation in Athens marked its fourth appearance at the Summer Olympics since its debut in the 1988 Summer Olympics.
Singapore participated at the 2006 Asian Games in Doha under the IOC country code SIN. It sent its largest contingent since participating in the Asian Games in 1951, with 215 members: 134 athletes and 81 officials. The contingent was led by Chef-de-Mission Annabel Pennefather and the flag-bearer was sailor Tay Junhao Roy.
Indoor volleyball was contested at the 2006 Asian Games in Doha, Qatar. All matches played at the Al-Rayyan Indoor Hall.
The men's long jump competition at the 2006 Asian Games in Doha, Qatar was held on 8 and 9 December 2006 at the Khalifa International Stadium.
The men's decathlon competition at the 2006 Asian Games in Doha, Qatar was held on 10–11 December 2006 at the Khalifa International Stadium.
The men's 100 metres competition at the 2006 Asian Games in Doha, Qatar was held on 8 and 9 December 2006 at the Khalifa International Stadium.
The men's 200 metres competition at the 2006 Asian Games in Doha, Qatar was held on 10 and 11 December 2006 at the Khalifa International Stadium.
The men's 400 metres competition at the 2006 Asian Games in Doha, Qatar was held on 8 and 10 December 2006 at the Khalifa International Stadium.
The men's 800 metres competition at the 2006 Asian Games in Doha, Qatar was held on 9 and 11 December 2006 at the Khalifa International Stadium.
The men's 110 metres hurdles competition at the 2006 Asian Games in Doha, Qatar was held on 11 and 12 December 2006 at the Khalifa International Stadium.
The men's 400 metres hurdles competition at the 2006 Asian Games in Doha, Qatar was held on 9 and 10 December 2006 at the Khalifa International Stadium.
The men's 4 × 100 metres relay competition at the 2006 Asian Games in Doha, Qatar was held on 11 and 12 December 2006 at the Khalifa International Stadium.
The women's 100 metres competition at the 2006 Asian Games in Doha, Qatar was held on 8 and 9 December 2006 at the Khalifa International Stadium.
The women's 200 metres competition at the 2006 Asian Games in Doha, Qatar was held on 10 and 11 December 2006 at the Khalifa International Stadium.
The women's 400 metres competition at the 2006 Asian Games in Doha, Qatar was held on 9 and 10 December 2006 at the Khalifa International Stadium.
The women's 800 metres competition at the 2006 Asian Games in Doha, Qatar was held on 8 and 9 December 2006 at the Khalifa International Stadium.
At the 2001 Southeast Asian Games, the athletics events were held in Kuala Lumpur, Malaysia. A total of 46 events were contested, of which 24 by male and 22 by female athletes. The track and field events were hosted at the National Stadium, Bukit Jalil, the marathons were held around Merdeka Square, and the racewalking events took place at Titiwangsa Lake Gardens.
Singapore 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 is the nation's seventeenth appearance at the Summer Olympics since its debut at the 1948 Games. In addition, Singapore was part of the Malaysian team at the 1964 Summer Olympics in Tokyo, but did not attend at the 1980 Summer Olympics in Moscow, because of its support for the United States boycott. The opening ceremony flag-bearers for Singapore are table tennis player Yu Mengyu and shuttler Loh Kean Yew. Diver Jonathan Chan is the flag-bearer for the closing ceremony.
The men's 100 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha on 27 to 28 September 2019.
The men's 200 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha from 29 September to 1 October 2019.
