Berezina tied for first place in the Women's Zonal 12 Championship in Jakarta in 1993,[1] and as a result was awarded the FIDE title of Woman International Master (WIM).

[3] Berezina was chosen to represent Australia in chess at the 1997 Maccabiah Games in Israel.

However, she suffered critical injuries when the Maccabiah bridge collapsed underneath the Australian contingent.

[5] In the same year, she achieved the title of International Master (IM) by coming equal second in the inaugural Oceania Zonal Championship held on the Gold Coast, Australia.

Berezina played on board one of the Australian national team at seven Women's Chess Olympiads, in 1994, 1996, 2000, 2002, 2004, 2006 and 2014.