He won the Men's K-2 200 metres gold medal at the 2012 Summer Olympics with Yury Postrigay.

[1] In June 2022, Dyachenko was one of three Russian canoeists who were given doping bans along with Nikolay Lipkin and Aleksandra Dupik.

[3] In June 2023, Dyachenko successfully appealed his disqualification to a Russian court, which overturned his disqualification "on the Russian territory", meaning he can compete and coach in Russia.

[4] Dyachenko is married to honored Master of Sports of Russia, rhythmic gymnastics coach, Anna Shumilova.

[1] He was also awarded the Russian Order of Friendship after winning his Olympic gold medal.