[1] She won a bronze medal for the 63 kg division at the 2004 European Judo Championships in Bucharest, Romania.

Kuzina made her official debut for the 2000 Summer Olympics in Sydney, where she competed in the women's middleweight class (70 kg).

She defeated Côte d'Ivoire's Lea Zahoui Blavo in the preliminary rounds, before losing out the quarterfinal match by an ippon and an uchi mata (inner thigh throw) to South Korea's Cho Min-Sun.

Kuzina offered another shot for the bronze medal by entering the repechage bouts, but she lost her first match, with three yuko and a harai makikomi (hip sweep wraparound), to Italy's Ylenia Scapin.

[3] Kuzina lost the preliminary round of sixteen match, by a yuko, to Hungary's Anett Mészáros, although she received two shidos (penalties) for using the non-combativity technique.