<prompt> Pedzisa mutsara unotevera: PaMitambo yeOlympic yeZhizha ya2004 muAthens, Lagoun akakwanisa semunhu mumwe chete mumhanyi wevarume 100 m butterfly. Akabvisa nguva yeFINA B-standard yekupinda ye53.66 kubva ku  <response>: Makwikwi eEurope muMadrid, kuSpain. Akadenha vamwe vanoshambira vanomwe pakupisa kwechishanu, kusanganisira mukwikwidzi wepamusoro wemenduru Milorad Čavić weSerbia neMontenegro. Akamhanyira kunzvimbo yechishanu ne0.24 yechipiri shure kwaFrench Frédérick Bousquet mu53.87. Lagoun akakundikana kuenda kumasemifinal, sezvo akaisa makumi maviri nematanhatu pakupedzisira mumatanho ekutanga. 