Rubuta ci gaba don wannan sakin layi - Kashkarov shine mafi kyawun dan wasan Soviet a tsakiyar shekarun 1980. Kashkarov ya lashe lambar yabo ta farko ta kasa da kasa a gasar zakarun duniya ta matasa ta 1982, inda ya lashe cikakkun lambobin yabo, zinare a tseren kilomita 15, azurfa a cikin relay da tagulla a tseren kilomita 10. Daga 1983 zuwa 1991, Kashkarov ya yi gasa a kowane Gasar Cin Kofin Duniya ta Biathlon da aka buɗe wa maza, kuma ya ci lambobin yabo a kowane ɗayansu, ban da 1990. Ya lashe lambar zinare a gasar 1983, 1985
da 1986 gasar zakarun duniya da zinare a cikin mutum 20 km a 1985 da kuma taron kungiyar a 1989.