He competed for the Soviet Union and the Russian Federation before immigrated to Germany where he won the national championship 8 times.

Since retiring from competition he coaches the TG Saar gymnastics team in Saarbrücken and performs in sport shows.

Kharkov competed for the Soviet Union at the 1988 Summer Olympics in Seoul where he received gold medals in floor exercises and in team all-around.

[1] He competed for Russia at the 1996 Summer Olympics in Atlanta, where he received a gold medal in team combined exercises.

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