Swimming at the 2008 Summer Olympics in the 100 metres butterfly, both set in Sydney, remained Olympic records. Michael Phelps of the United States also broke the record for the most gold medals ever won by an Olympian with a total of 14; 8 of which were won during the 2008 Summer Olympics - this was also a world record. <nowiki>*</nowiki> World record split from the 4 × 100 m freestyle relay Note: At the 4 × 100 m freestyle relay final, anchor Jason Lezak swam the fastest 100 m split (46.06); however, this is not considered an official FINA record, as he did not swim
Guyana at the 2008 Summer Olympics Olympics in London, and have participated at every Summer Olympic games between 1948 and 2008 except for the 1976 Summer Olympics in Montréal. Guyana declared independence from the British Empire in 1966, and participated in all previous games (from 1948 to 1964) under its colonial name, British Guiana. Overall, Guyana's appearance in Beijing marked its fifteenth Olympic appearance. The country has not sent delegations to participate in any Winter Games. In all of its history, the only case in which a Guyanese athlete has medaled at the Olympics was when Michael Anthony won a bronze medal at the 1980 Summer