Career
He tied for first with Evgeniy Najer, Kaido Külaots, Zoltan Gyimesi, Sergey Grigoriants and Oleg Korneev at the Cappelle-la-Grande Open of 2004, finishing third on tiebreak. Timofeev participated in the Chess World Cup 2005, where he reached the second round and lost to Emil Sutovsky. In 2009 Timofeev participated in the Elite group of the 44th Capablanca Memorial, a category 17 double round-robin tournament, where he scored 4 points out of 10.
In the Chess World Cup 2009 he was eliminated in the second round by Sergey Karjakin.
This result enabled him to qualify for the Chess World Cup 2011, in which he was knocked out in the first round by Sergei Azarov. Timofeev played for the Russian national team at the 2005 European Team Chess Championship, China vs Russia matches of 2007, 2009, 2010 and at the 39th Chess Olympiad (in this latter for Russia 2 team).