 Karpenko akaita mutambo wake wokutanga pasi rose pa1995 World Championships muSabae, Japan nemitambo yakasimba; zvisinei, akafukidzwa nevakuru vekare vekugadzira uye haana kuwana menduru. Nguva pfupi pashure pacho, akakuvara musimba rake uye haana kukwanisa kukwikwidza muMitambo yeOlympic ya1996. Gore rakatevera racho, akatyoka munwe paaidzidzira uye akamanikidzwa kuona 1997 World Championshipskubva mumatanda. 