Hansen akahwina 100 metres breaststroke pa2008 Summer Olympics, chiitiko chake choga, achipedza ari pachinzvimbo chechina, asi akawana menduru yegoridhe senhengo yechikwata cheU.S. chakahwina mumakwikwi e4×100 metres medley relay
. Akarasikirwa nomenduru yacho paakanga ari mundege achienda kumusha achibva kupati muguta rokumusha kwake pedyo nePhiladelphia achienda kuAustin; yakadzorerwa kwaari zuva rakatevera racho.