The second seed advanced to the quarter-finals of the $1.3 million Montreal Cup with a 6-2, 3-6, 6-2 over Elena Bovina of Russia.
Reputations counted for little at the French Open on Thursday when Amelie Mauresmo, James Blake and David Nalbandian were toppled by opponents ranked outside the world's top 75.
Frenchwoman Amelie Mauresmo recovered from a sluggish start to beat Uzbekistan's Varvara Lepchenko 6-4 6-1 and reach the third round of the Strasbourg Open on Wednesday.
The Slovak will meet Svetlana Kuznetsova in the final of the Eastbourne International.
The Belgian, who will succeed Mauresmo as world number one, claimed the first WTA Championships.
Former world number one Amelie Mauresmo said on Thursday she would not play in the Beijing Olympics next month to concentrate on preparing for the US Open.
The world No. 1 joined Kim Clijsters, Justine Henin-Hardenne and Nadia Petrova in the semi-finals of the French Open.
Top seed Svetlana Kuznetsova was beaten 6-2, 6-2 by Denmark's Caroline Wozniacki in the second round of the Eastbourne International on Wednesday.
The French world No 3 is aiming to take home a diamond studded racket, awarded for three title wins in five years, following her back-to-back victories at the Diamond Games in 2005 and 2006.
Justine Henin-Hardenne clinched the year-end number one spot and a place in the final of the WTA Championships when she ended Maria Sharapova's 19-match winning streak.
Leading Russians, third seed Anastasia Myskina and fourth seed Nadia Petrova, tumbled out in the Rome Masters.
Amelie Mauresmo won the biggest title of her career on Sunday.
The Frenchwoman, making her way back from a shoulder injury, was upset by Patty Schnyder at the Australian Hardcourt Championships.
Former world number one Amelie Mauresmo suffered a blow to her confidence before the Australian Open when she was beaten by Patty Schnyder in the quarter-finals of the Australian Hardcourt Championships on Thursday.
Vera Zvonareva stunned sixth seeded Amelie Mauresmo 4-6, 6-3, 6-4 to advance to the second round of the Kremlin Cup.
"Coming into the clay season I'm really just trying to enjoy myself. I've been struggling the last few years on this surface a lot, more than on the others," Mauresmo said ahead of the season's second major, which begins on Sunday.
Mauresmo overcame Paola Suarez while Serena thrashed Jennifer Capriati in the women's quarter-finals at Wimbledon.
Local favourite Amelie Mauresmo reached the final of the Paris Open with a 6-2, 0-6, 6-1 victory over second seed Jelena Jankovic on Saturday. The Frenchwoman, who won the tournament in 2001 and 2006, next faces Olympic champion Elena Dementieva after the third seed from Russia went through when Serena Williams pulled out injured.
Wimbledon champion Amelie Mauresmo suffered a surprise loss to unseeded Ukrainian Julia Vakulenko at the German Open on Friday, as world number one Justine Henin moved smoothly into the quarter-finals.
The world number two said she wants to concentrate on the 2005 season.
World number one Amelie Mauresmo won 4-6, 6-4, 6-4 to enter the semi-finals of the German Open.
Henin-Hardenne out-hit fellow-Belgian Kim Clijsters in the first semi-final, while Mauresmo beat Maria Sharapova.
In an era where women's tennis, with a few notable exceptions, has churned out robotic, baseline sluggers, Amelie Mauresmo always stood out from the crowd, even if her results did not always match her flair.
World number one Justine Henin scored and easy win over Marion Bartoli while Amelie Mauresmo went through when her Russian semi-final opponent Nadia Petrova pulled out with injury.
Former world number one Amelie Mauresmo had to forfeit her Brisbane International semi-final against compatriot Marion Bartoli Friday after receiving treatment on her lower back and left leg. The Frenchwoman, who had stunned top seed Ana Ivanovic 6-3, 6-2 in the quarter-finals on Thursday, was serving at 0-4 when she called for the trainer.
Amelie Mauresmo reached the Dubai Open final after Serbia's Jelena Jankovic retired through injury when trailing 6-2 on Friday.
Top seed Amelie Mauresmo joined Russian trio Elena Dementieva, Nadia Petrova and Anna Chakvetadze in the Kremlin Cup quarter-finals on Thursday.
The two are headed for a possible showdown in the Australian Open quarterfinal
Nadia Petrova pulled off a stunning 6-3, 7-5 victory over the world number two and top seed.