Competing in four Winter Olympics, he won two medals with a silver in 2006 (four-man) and a bronze in 2010 (two-man).

[1] On 24 November 2017, he was found guilty of doping offences and stripped of his medals from the 2014 Winter Olympics.

[2] Zubkov also paid a fee to borrow personal skids from the 2011 World Champion, Germany's Manuel Machata.

[7] In October 2014 Zubkov announced his retirement from the sport due to a long-term injury which prevented him from competing at the start of the 2014–15 season.

[8] In May 2016, Zubkov was named in a New York Times investigation of the state-sponsored steroid program in Russia.