 Nyora kupfuurira kweiyi ndima - Akapinda muchikamu chevatambi gumi vepamusoro munyika mumwaka wa1990, achiisa yakanakisa ye. Pashure pokupedza nzvimbo yechipiri paSoviet Indoor Athletics Championships, Ryzhenkov akasarudzwa kuti amiririre Soviet Union pa 1991 IAAF World Indoor Championships. Pakuratidzwa kwake kwokutanga kukuru iye akatora menduru yesirivha nehomwe ye, akarohwa chete nemumwe wake akakurumbira Sergey Bubka. 