Swimming at the 2008 Summer Olympics – Men's 100 metre backstroke
Records
Prior to this competition, the existing world and Olympic records were as follows. The following new world and Olympic records were set during this competition.

Swimming at the 2008 Summer Olympics – Men's 100 metre backstroke

Section Title: Records
Table Section Text: Prior to this competition, the existing world and Olympic records were as follows. The following new world and Olympic records were set during this competition.

Date	Event	Name	Nationality	Time	Record

August 10	Heat 4	Matt Grevers	United States	53.41	OR

August 11	Semifinal 1	Arkady Vyatchanin	Russia	53.06	OR

August 11	Semifinal 2	Hayden Stoeckel	Australia	52.97	OR

August 12	Final	Aaron Peirsol	United States	52.54	WR, OR

Sentence(s)

Stoeckel's Olympic record was 52.97 in the semifinals.

final_sentence: Stoeckel's Olympic record was 52.97 in the semifinals.