On 29 July 2012, Lobuzov raced in the 200 meters freestyle. He swan in heat 6 against Brett Fraser (Cayman Island), Matthew Stanley (New Zealand), Thomas Fraser-Holmes (Australia), Sebastiaan Verschuren (Netherlands), Park Tae-Hwan (South Korea) and Yannick Agnel (France). Lobuzov finished in 6th in the heat, in a time of 1:47.91. He was the fifteenth fastest swimmer in the heats, qualifying for the semifinal. Lobuzov swam in the first semifinal. He was last in his heat and 16th overall, with a time of 1:48.26, and therefore did not qualify for the final.