Lindsay Davenport moved into the quarter-finals of the US Open with a comprehensive defeat of Nathalie Dechy.
The world number one, seeded second in New York, routed the 15th seed from France 6-0 6-3 in just 57 minutes.
Davenport, who has now won all eight of her meetings with Dechy, broke her in the opening game of the match and won the first set in only 19 minutes.
She will next take on sixth seed Russian Elena Dementieva, who eased past Patty Schnyder in straight sets.
Davenport said: "It's hard to think about the next match yet. I'm just so happy to be in the quarter-finals.
"I want to win this again. As long as I can keep going, I still have a chance."
The towering Dementieva had few problems against Swiss 11th seed Schnyder - who beat her in the Australian Open.
Last year's runner-up at Flushing Meadows was more consistent with her groundstrokes and reached the quarter-finals with a 6-4 6-3 triumph on Louis Armstrong Court.
Third seed Amelie Mauresmo also cruised through after sweeping aside another Russian, Elena Likhovtseva, 6-1 6-4.
The Frenchwoman saved seven break-points and never lost serve on her way to her fifth successive quarter-final appearance in New York.
She will now take on compatriot Mary Pierce in the last eight.