Kim Clijsters won her first LTA Tour tournamen of the year, upsetting second-seeded Lindsay Davenport in the final of the Bank of the West Classic in Stanford, California.

The third-seeded Belgian won in three sets - 6-4 6-7 (5-7) 6-1 - and served notice that she cannot be overlooked for the US Open next month.

Clijsters avenged a quarter-final loss at Wimbledon and won for the first time in four finals this year.

"I hadn't won one yet, so it's really nice," said Clijsters. "After the second set, I was like, 'Oh, I don't want to lose another'. So I kept focusing."

"She is a better player than she was three weeks ago when I played her at Wimbledon," admitted Davenport, who was denied her fourth title of the year.

"She didn't play well at Wimbledon. She played well today."