Hansen je dionicu otplivao za 59.30 sekundi, te za 48 stotinki poboljšao lanjski rekord Japanca Kosukea Kitajime.
KRONOLOGIJA SVJETSKOG REKORDA NA 100 PRSNO:
1:01.29: Norbert Rozsa (Mađ), 20/08/91 Atena
1:00.95: Karoly Guttler (Mađ), 03/08/93 Sheffield
1:00.60: Fred Deburghgraeve (Bel), 20/07/96 Atlanta
1:00.36: Roman Sludnov (Rus), 15/06/00 Moskva
1:00.29: Ed Moses (USA), 29/03/01 Austin
1:00.26: Roman Sludnov (Rus), 28/06/01 Moskva
59.97: Roman Sludnov (Rus), 29/06/01 Moskva
59.94 : Roman Sludnov (Rus), 24/07/01 Fukuoka
59.78: Kosuke Kitajima (JAP), 21/07/03 Barcelona
59.30: Brendan Hansen (USA), 08/07/04 Long Beach