Swimming at the 2008 Summer Olympics – Men's 200 metre backstroke

This was the 13th appearance of the 200 metre backstroke event. It was first held in 1900. The event did not return until 1964; since then, it has been on the programme at every Summer Games. From 1904 to 1960, a men's 100 metre backstroke was held instead. In 1964, only the 200 metres was held. Beginning in 1968 and ever since, both the 100 and 200 metre versions have been held.[2]

Five of the 8 finalists from the 2004 Games returned: gold medalist (and 2000 silver medalist) Aaron Peirsol of the United States, silver medalist Markus Rogan of Austria, bronze medalist (and 2000 finalist) Răzvan Florea of Romania, sixth-place finisher Simon Dufour of France, and seventh-place finisher Gregor Tait of Great Britain. Peirsol had won the 2001, 2003, and 2005 World Championships and held the world record from 2002 to 2007. His countryman Ryan Lochte, however, had emerged from Peirsol's shadow as a true threat to Peirsol's dominance. After taking bronze in 2005, Lochte defeated Peirsol at the 2007 World Championships, taking the world record as well. Peirsol responded by matching Lochte's record at the U.S. Olympic trials.[2]

The Cayman Islands, Kazakhstan, South Africa, and Uzbekistan each made their debut in the event. Australia and Great Britain each made their 12th appearance, tied for most among nations to that point.

Each National Olympic Committee (NOC) could enter up to two swimmers if both met the A qualifying standard, or one swimmer if he met the B standard. For 2008, the A standard was 1:59.72 while the B standard was 2:03.90. The qualifying window was 15 March 2007 to 15 July 2008; only approved meets (generally international competitions and national Olympic trials) during that period could be used to meet the standards. There were also universality places available; if no male swimmer from a nation qualified in any event, the NOC could enter one male swimmer in an event.

The two swimmers per NOC limit had been in place since the 1984 Games.

The competition followed the format established in 2000, with three rounds: heats, semifinals, and a final. The advancement rule followed the format introduced in 1952. A swimmer's place in the heat was not used to determine advancement; instead, the fastest times from across all heats in a round were used. The top 16 swimmers from the heats advanced to the semifinals. The top 8 semifinalists advanced to the final. Swim-offs were used as necessary to break ties.

This swimming event used backstroke. Because an Olympic-size swimming pool is 50 metres long, this race consisted of four lengths of the pool.

Prior to this competition, the existing world and Olympic records were as follows.

World record	Ryan Lochte (USA)  Aaron Peirsol (USA)	1:54.32	Melbourne, Australia Omaha, United States	30 March 2007 4 July 2008	[7] [8]
Olympic record	Aaron Peirsol (USA)	1:54.95	Athens, Greece	19 August 2004	-

The following new world and Olympic records were set during this competition.

Date	Event	Swimmer	Nation	Time	Record
August 15	Final	Ryan Lochte	United States	1:53.94	WR

The competition moved to a three-day schedule, rather than two days as in the past.

All times are China Standard Time (UTC+8)

• Official Olympic Report