The third seed, who was champion here in 2006, committed double faults twice on a break point and once on match point to lose in three sets, the 33rd-ranked Bondarenko coming out 6-2, 6-7 (3/7), 6-1 winner. Crowd-favorite Maria Sharapova of Russia made quick work of Samantha Stosur of Australia 6-0, 6-1, while U.S. Open finalist Caroline Wozniacki of Denmark fell victim to illness.

Wozniacki, the remaining highest seeded player at fourth here, abandoned the match when she was trailing Aleksandra Wozniak of Canada 0-5 in the first set.

"There was nothing wrong with my serve. I was serving good today," Dementieva said despite 11 double faults. She hit a double fault on Bondarenko's advantage point in the third game of the first set after taking a 2-0 lead, allowing Bondarenko to take the following six games in a row and the set.

Trailing 4-5 in the second set, Dementieva saved a triple match point, the first with a backhand winner and the next two thanks to Bondarenko's forehand error. Dementieva seemed to capture the momentum by breaking Bondarenko in the following game to lead 6-5, but again the Russian hit a double fault on a break point before winning the tiebreak.

Dementieva, however, started the final set with two consecutive double faults to go down 0-1 and then she broke back in the second. But that was all she could do.

Bondarenko comfortably won the two-hour-32-minute battle thanks to Dementieva's 11th double fault.

The fallen Russian said she had a chance to make it 2-2 in the final set on a break point, but she failed to convert, blaming the umpire for a "bad call."

"I was trying to fight. I was down all the match and I was able to somehow change the situation. I saved match points in the second set and I was making another break for 2-2," said Dementieva.

"Such a big mistake from the chair umpire, so it was difficult to play against Kateryna who was playing very well, also against many bad calls. I was still disappointed about it."

Dementieva is among a number of top players to fall, including world number one Dinara Safina and French Open champion Svetlana Kuznetsova, both compatriots, as well as American second seed Venus Williams.