World number one Justine Henin advanced to the quarter-finals of the 1.34-million-dollar Rogers Cup tournament on schedule on Thursday with a 7-6, 6-2 victory over China's Peng Shuai.
Henin, titlist in 2003, has looked sharp in her first two matches of this US Open tuneup, her first tournament since she was shocked by France's Marion Bartoli in the Wimbledon semi-finals.
Henin took her time getting into the match against Peng, feeling out her opponent and finding her rhythm in difficult windy conditions before pulling away for the decisive victory.
Henin broke Peng to take a 6-5 lead in the first set, then won seven of the next nine games to seal the victory.
"It was tough out there," Henin said of the swirling winds. "It's hard because it's tough to say where the wind comes from, and it's turning a lot in the stadium.
"But it's the same for both players, and you just have to be patient, stay very calm and be focused on every ball.
"But it's tough, especially when you don't have a lot of matches - it's tough to really find a good rhythm."
Henin next faces sixth-seeded Russian Nadia Petrova, who beat Patty Schnyder of Switzerland 6-4, 6-1.