As a child, Dyumin's family lived in both Kaluga and Voronezh as a result of his father's military transferrals.

[5] In 2015 Dyumin has served as Chief of the Main Staff and First Deputy Commander-in-Chief of the Russian Ground Forces.

[6] On December 24, 2015, by decree of President Vladimir Putin, Dyumin was appointed Deputy of Defense Minister of Russia Sergey Shoygu.

He decided to run for governor as an independent candidate, but he was supported by United Russia and the far-right Liberal Democratic Party.

Since 2017, according to Dyumin, preparatory work has been launched with the participation of Russian Railways, the President and the Prime Minister.

Upon completion of the high speed rail link, the time required to cover the 194 km distance between Moscow and Tula will decrease from the current two hours to only 55 minutes.

[14] Following the Wagner rebellion, Russian media began discussing the possibility of Dyumin replacing controversial defense minister Sergei Shoigu, one of the targets of the uprising.

In October 2011, together with Roman Rotenberg and Gennady Timchenko, he participated in a charity friendly hockey match for the SKA Legends team.

[18] On 7 October 2015, Dyumin participated in the Night Hockey League match, which took place in Sochi and was dedicated to the birthday of Russian President Vladimir Putin.