Pedzisa mutsara unotevera: Pamitambo yeOlympic yeZhizha ya2004 muAthens, Aresti akawedzera purogiramu yake nokukwikwidza mumakwikwi maviri ekushambira. 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. Mumutambo wake wechipiri,
Mumakiromita 100 akasununguka, Aresti akaiswa pachinzvimbo chemakumi matatu nemasere mumakwikwi ekutanga mangwanani. Achishambira mumakwikwi mana, Aresti akapwanya rekodhi yeCypriot ye51.10 kuti achengetedze nzvimbo yechipiri pamusoro pePapua New Guinea's Ryan Pini ne0.01 yechipiri.