The Brunei delegation included only one track and field athlete, meaning Brunei, along with British Virgin Islands and Liechtenstein, sent the lowest number of athletes to the 2004 Summer Games at one. The athlete selected was Jimmy Anak Ahar, who was a middle-distance runner that was selected via a wildcard as the nation had no athletes that met the "A" or "B" standards in any event. Ahar was also selected as flag bearer for the opening ceremony. Ultimately, Ahar did not progress beyond the heats, meaning Brunei won no medals at this Summer Olympics.