Ouch, the Duel in the Pool started with a bang, with USA setting a world record in the women’s 4×100 relay, 3:45.56 to Europe’s 3:51.04. American swimmers were Natalie Coughlin, Rebecca Soni, Dana Vollmer and Missy Franklin, old record was USA 3:47.97 at the Manchester 2009 Duel in the Pool. Coughlin even set an American record in the 100 backstroke with a 55.97 compared to her previous 56.08 from Dubai last year. It is uphill for Europe from now on! See result list here.