He won the silver medal in the four-man event at the 2008 FIBT World Championships in Altenberg, Germany.

Trunenkov originally took up sprinting whilst at university before switching to bobsleigh at the age of 21.

[1] On 31 January 2017, the Russian Anti-Doping Agency announced that Trunenkov had been banned for four years from April 2016 due to a doping violation.

[2] Trunenkov was part of a four-man Russian team who originally won gold at the 2014 Winter Olympics but was then disqualified and stripped of medals because Alexandr Zubkov tested positive for doping.

On 27 November 2017, Trunenkov was found guilty in anti-doping rule violations, disqualified and declared ineligible for future Olympic games.