Mezue ahịrịokwu na-esonụ: Kashkarov bụ n'ezie onye kachasị mma Soviet biathlete nke etiti afọ 1980. Kashkarov nwetara ihe nrite mba ụwa mbụ ya na 1982 World Junior Championships, ebe ọ meriri akara nrite zuru ezu, ọla edo na 15 km onye, ọlaọcha na relay na ọla nchara na 10 km ọsọ ọsọ. Site na 1983 ruo 1991, Kashkarov gbara asọmpi n'asọmpi ụwa niile nke Biathlon nke meghere maka ụmụ nwoke, wee merie nrite na nke ọ bụla n'ime ha, belụsọ na 1990. O ritere ọla edo n'asọmpi relay nke afọ 1983,
1985 na 1986 World Championships na ọlaedo na 20 km onye na 1985 na otu ihe omume na 1989.