Swimming at the 2004 Summer Olympics – Men's 4 × 100 metre medley relay
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 2004 Summer Olympics – Men's 4 × 100 metre medley relay

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 21	Final	Aaron Peirsol (53.45) Brendan Hansen (59.37) Ian Crocker (50.28) Jason Lezak (47.58)	United States	3:30.68	WR

Sentence(s)

Aaron Peirsol, Brendan Hansen, Ian Crocker, and Jason Lezak lowered their time set at the 2003 world record, by stopping the clock at 3:30.68.

final_sentence: Aaron Peirsol, Brendan Hansen, Ian Crocker, and Jason Lezak lowered their time set at the 2003 world record, by stopping the clock at 3:30.68.