She's won her last 8 in a row, and hasn't lost a third-set tiebreak since her fantastic choke against Hantuchova from match point up in 2002 Zurich. She's 5-0 in such matches at the US Open, which is the most remarkable statistic of all. This includes wins over Osterloh (in her break-out US Open run), Mauresmo, Capriati, Chakvetadze, and Davenport. Also, one of her only two wins against Venus Williams came in a third-set tiebreak.
Even without a big serve, she is unstoppable when it gets deep in a match!
Re: Dementieva: Awesome Official 3rd Set Tiebreak Record!
Whenever it goes to a final set tiebreak with dementieva, I could easily switch off, knowing that she will win it. It was first pointed out to me by eurosport commentators at the 2005 USO against Chakvetadze. She hasn't lost one since! Quite an amazing record.
I am not shocked at that since she is strong mentally and has an all-around game(minus serve).
For a player so mentally strong in final set tiebreaks, the amount of big matches she has lost from commanding positions is shocking. Myskina at Wimbledon 2005 , Safina at Roland Garros 2008 and her 2 abysmal grand slam finals are just a few examples.