 Nyora kupfuurira kweiyi ndima - Muna 1993 Biryukova akahwina menduru yegoridhe paWorld Championships nekusvetuka 15.09 metres, rekodhi nyowani yenyika. Anonzi aidavira kuti aikwanisa kusvetuka mamita 16, asi muna 1994 haana kusvika pamamita 15, kunyange zvazvo akava shasha yeEurope mwaka iwoyo. Muna 1995 akatamba muWorld Championships, uye akapotsa asvika pakakwirira kare nokusvetuka mamita 15,08. Vakadzi vechikwata chechikwata chechikwata chechikwata che 