Ramba uchinyora ndima ino - Pamakwikwi eOlympic yeZhizha ya2004 muAthens, Aresti akawedzera purogiramu yake nokuronga mumitambo miviri yokushambira. Akabvisa FINA B-standard yekupinda nguva ye51.45 (100 m freestyle) uye 1:53.61 (200 m freestyle) kubva kuAkropolis Grand Prix. Mumakwikwi emamita mazana maviri akasununguka, Aresti akatarisana nevamwe vanoshambira vanomwe pakupisa kwechitatu, kusanganisira veteran weOlympic Aleksandar Malenko weYugoslavia. Akakunda Chen Te-tung weChinese Taipei kuti atore nzvimbo yechitanhatu uye makumi mana nemana zvachose ne 0.24 yechipiri mu1:53.90. Muchiitiko chake chechipiri, 100 m freestyle
, Aresti akaiswa pachinzvimbo chemakumi matatu nesere mumakwikwi okutanga mangwanani ano. Achishambira mumakwikwi mana, Aresti akapwanya rekodhi yeCypriot ye51.10 kuti achengetedze nzvimbo yechipiri pamusoro pePapua New Guinea's Ryan Pini ne0.01 yechipiri.