 Ramba uchiverenga ndima ino - Nyika yake yeGreece payakaita kuti muAtene muitwe mitambo yeOlympic ya2004, Matsa akatanga kuita mitambo yeOlympic aine makore 17, achikwikwidza mumakwikwi maviri ekushambira. Akanyora FINA B-standard ye25.61 50 m freestyle kubva kuOlympic bvunzo chiitiko kuAthens Olympic Aquatic Center. Pazuva rokutanga reMitambo, Matsa akabatana naNery Mantey Niangkouara, Eleni Kosti, naZoi Dimoschaki mu 4 × 100 m freestyle relay. Iye akabatwa ane mhaka nokuda kwokutanga kusimuka kwechikwata, apo vaGiriki vakanga varambidzwa kubva kunopisa. Anenge vhiki rimwe gare gare, mumakwikwi emamita 50 akasununguka, Matsa akaiswa pachinzvimbo chemakumi matatu nematatu mumakwikwi okutanga mangwanani. Achishambira mumakwikwi manomwe, akakunda Sharntelle McLean weTrinidad neTobago kuti atore nzvimbo yechinomwe nemakumi mana ezana 0.40 mu26.46. 