Top seed Amelie Mauresmo, Kim Clijsters and Martina Hingis also revelled in improved conditions following the rain-soaked start to the French Open.
The Russian beat Italy's Roberta Vinci 6-2, 7-6 in the Toronto Cup on Tuesday.
After four days of play, the French Open was left without a Williams sister in the draw on Wednesday when former runner-up Venus joined 2002 champion Serena in making an early exit.
Marion Bartoli stunned top seed Justine Henin to reach the Wimbledon final on Friday, beating the world number one 1-6 7-5 6-1.
Ana Ivanovic will take on Venus Williams in the semi-finals.
Victoria Azarenka is relishing her return to Melbourne Park as double defending champion and while Serena Williams is a hot favourite to deny her a hat-trick of titles, the Belarusian says she will not focus solely on the challenge from the World No 1.
The Swiss needs to win in Paris to join Don Budge and Rod Laver as the only men to hold all four slams at the same time.
Defending champion Djokovic fired his 15th ace on match point to defeat Querrey but his serve had been an issue earlier in their second-round encounter.
The Russian won the Istanbul Cup after her opponent Aravane Rezai retired hurt.
The American doubles specialist ended French schoolgirl Tatiana Golovin's amazing Australian Open run with a crushing 6-2 6-0 win in the fourth round.
Wimbledon women's champion Garbine Muguruza says she will savour her victory in order to prevent a similar slump in form to the one she suffered after winning the French Open in 2016.
Serena Williams capped off yet another successful day at Wimbledon for America's premier tennis family as she followed up her singles triumph by winning the doubles title with sister Venus on Saturday.
Maria Sharapova had to workk hard for a 6-0, 5-7, 6-2 win over Israel's Shahar Peer to reach the China Open quarter-finals
A round-up of all tennis action on Saturday.
The Indian ace defeated wild card Eleni Daniilidou of Germany 7-6(4), 2-6, 6-3 in the first round match on Tuesday.\n\n
The Russian ace was beaten by Nicole Vaidisova in the Family Circle Cup second round.
French Open champion Anastasia Myskina lost to 15-year-old Czech Nicole Vaidisova in the second round of the Family Circle Cup.
Serena Williams summoned all her fighting qualities to beat Victoria Azarenka 4-6, 7-6, 6-2 at the Australian Open on Wednesday after sister Venus's exit. Li Na earlier stunned Venus to become just the second Chinese to reach the semi-finals of a Grand Slam.
The tennis star reveals her deepest secrets in her latest interview with Harper's Bazaar UK.
She will face the Serbian in the first round of Cincinnati Open in Ohio on Monday.
Andy Ram became the first Israeli to win a Grand Slam tennis title when he partnered Russia's Vera Zvonareva to win the Wimbledon mixed doubles crown.
Kim Clijsters beat Russian Svetlana Kuznetsova 7-5, 6-2 to win the Warsaw Cup
Venus and Serena Williams won the 2009 Australian Open women's doubles title, beating Slovakia's Daniela Hantuchova and Japan's Ai Sugiyama, 6-3, 6-3 in the final in Melbourne on Friday. The tenth-seeded American sisters captured their eighth Grand Slam doubles title in the process, having also won the Australian Open in 2001 and 2003.
Serena Williams ended the fairytale run of Mirjana Lucic-Baroni at the Australian Open on Thursday with a crushing 6-2, 6-1 win that set up a final against her sister Venus.
Martina Navratilova will have the chance to crown her remarkable career with Olympic gold in August.
Back strain forced Lindsay Davenport to pull out of her second round clash against Anna-Lena Groenefeld at Stanford
Russia closed in on a Fed Cup semi-final victory over the United States after Anastasia Myskina beat Venus Williams.
Gauff vows to be more aggressive in Osaka showdown
Serena Williams applied some coaching tips from older sister Venus in her 6-3 6-2 thumping of sixth-seeded Dinara Safina on Friday that put the American into the finals of the US Open.
Venus and Serena Williams enter the women's Wimbledon quarter-finals on Tuesday with even their next opponents conceding they are strong favourites for another final appearance. Defending champion Venus faces Tamarine Tanasurgan and the unseeded Thai, who defeated second seed Jelena Jankovic to reach her first grand slam quarter-final, is not brimming with confidence.
It will be the earliest meeting between the two since their first professional match in the second round of the 1998 Australian Open.