Grishin was coached by his father Boris, who is also a retired Olympic water polo defender.

[2] His nephew, Sergey Bida, is a top-ranked épée fencer who made his Olympic debut in Tokyo, winning a silver medal.

[5] He moved to the United States in 2023 after the Russian invasion of Ukraine, along with his wife, Olympic épée fencer Violetta Khrapina Bida.

This biographical article relating to a Russian water polo figure is a stub.

You can help Wikipedia by expanding it.This biographical article relating to a Soviet water polo figure is a stub.