He trained at the Armed Forces sports society in Kaliningrad in 1976–77 and at Dynamo in Kiev since 1979.

His son, Sergei S. Beloglazov, died in a car accident at the age of 26 in Sonoma, CA.

As of April 2009, Sergei is the National Head Coach of the Wrestling Federation of Singapore.

On August 31, 2018, Beloglazov was named the Cliff Keen Wrestling Club head coach in Ann Arbor, Michigan.

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