Natalie Coughlin, Rebecca Soni, Dana Vollmer and Missy Franklin demolishing the women’s short course meters 4×100 medley world record with a time of 3:44.55 at the 2011 Duel in the Pool in Atlanta, Georgia. Old record was 3:47.97 from the Duel in the Pool in 2009.
Video: USA starts Duel in the Pool 2011 with 4×100 medley world record
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