Career
He was selected by the Colorado Avalanche, 101st overall in the 2015 National Hockey League Entry Draft. Mironov played as a youth within his hometown Moscow, and was drafted in the fourth round, 103rd overall in the KHL Junior Draft by Dynamo Moscow in 2011. As a defensively minded player on the blueline, he appeared in the Minor Hockey League with The Human Context Ministry of the Interior junior club in the 2011-2012 season.
He made his senior KHL debut playing with Dynamo during the 2012-2013 KHL season.
Appearing in an impressive 40 games, for 5 assists, and in all 18 post-season games, Mironov contributed to help Dynamo capture the Gagarin Cup in his first professional season. Mironov was signed by Dynamo Moscow to a two-year contract extension on 12 September 2013.
Having established his role as a regular on the blueline of Dynamo as an 18-year-old, Mironov improved his point totals in the following season with 3 goals and 7 assists in 46 games. At the conclusion of his third season in the KHL in which he was an selection to the 2015 KHL All-Star Game, Mironov was swiftly signed to a two-year contract extension with Dynamo Moscow on 22 April 2015.
After he was passed over in the three preceding drafts, Mironov was selected 101st overall by the Colorado Avalanche, marking their first Russian selection since 2004, in the 2015 National Hockey League Entry Draft on 27 June 2015.
Mironov was first selected to play at the international level with Russia"s under-18 Team at the 2012 IIHF World U18 Championships in the Czechoslovakian Republic. He played in all 6 games for Russia on the blueline on way to a 5th place finish. Mironov, represented Russia at the 2013 and 2014 World Junior Championships, helping his native country earn a bronze medal at both events while contributing six points in 14 contests.
As a 20-year-old, Mironov was the youngest player selected to the Team Russia for the 2015 IIHF World Championship.
Mironov made his senior debut in the third group stage game in a 4-2 defeat against the United States, on 4 May 2015. He contributed his first assist in a 7-0 victory over Belarus on 9 May 2015.
He would finish the Tournament having played in 8 games for a single assist as Russia claimed the Silver Medal after defeat in the Final to Canada.