Sania Mirza and Jie Zheng moved into the semi-finals of the women's doubles with a straight sets win over Su-Wei Hsieh and Shuai Peng.
French Open champion Barty exited the tournament in the last 16 but regained the number one spot after last year's champion Naomi Osaka was also knocked out at the same stage.
Images from Day 9 of the 2020 Australian Open in Melbourne on Tuesday.
Images from Day 7 at the US Open.
Penpix of the top women's contenders at the 2021 French Open which begins on Sunday
But for the 23-year-old Bouchard, a former world number five who has slumped to 56th in the rankings, it was another blow after her first-round exit in Indian Wells.
A summary of Friday's tennis action from around the world.
Greek teenager Stefanos Tsitsipas slayed another tennis giant on Saturday, saving a match point as he toppled big-serving Kevin Anderson 6-7(4), 6-4, 7-6(7) in a thriller to set up a Rogers Cup final against top seed Rafael Nadal.
Summary of sports events and persons who made news on Monday
American Serena Williams withdrew from the French Open on Monday, shortly before she was due on court to face Maria Sharapova in a much-anticipated fourth round showdown.
A marvel on the tennis court, new mum Serena Williams is now sporting her own superhero outfit as she makes her return to Grand Slam tennis.
Barty is seen as Australia's best hope to end its long wait for a first home-grown women's champion.
World number one Naomi Osaka lost in three sets to unseeded Swiss Belinda Bencic in the Madrid Open quarter-finals on Thursday as Simona Halep, Sloane Stephens and Kiki Bertens completed the final four line-up.
Czech Petra Kvitova won the Aegon Classic in Birmingham on Sunday after fighting back to beat Australian Ashleigh Barty 4-6, 6-3, 6-2.
IMAGES from the matches played at the Miami Masters on Sunday
Muchova, who came into the match against the 12th seed with a world ranking of 202, was understandably nervous from the outset but grew into the contest and eventually prevailed 3-6, 6-4, 6-4 in two hours and 27 minutes.
Australia's Alexei Popyrin was the last man standing, losing 7-6 (3), 6-3, 6-7 (10), 4-6, 6-3 to France's Lucas Pouille in their third round match.
New world number one Ashleigh Barty has suffered a pre-Wimbledon injury scare, withdrawn from this week's Eastbourne grasscourt tournament with a recurrence of a right arm injury.
Order of play on the main show courts at the French Open.
Barty survived a first-round scare at the US Open on Monday
Following Iga Swiatek's victory over Coco Gauff in the final, here's a list of French Open women's singles champions:
Images from Day 7 of the 2022 Australian Open at Melbourne Park on Sunday.
World Number one Simona Halep and Japan's Naomi Osaka are among the players nominated for the Women's Tennis Association (WTA) Player of the Year award.
Big-serving Isner reaches Montreal second round
'I felt comfortable knowing that I just needed to change a few things, to adjust, to try and bring the match back in my favour'
World number two and top seed Caroline Wozniacki, runner-up at the south coast event last year, cruised into the semi-finals with a 6-4, 6-3 win over Australia's Ashleigh Barty.
Holder Elina Svitolina will face world number one Ash Barty in the end-of-season WTA Finals showpiece on Sunday after they got past Belinda Bencic and Karolina Pliskova respectively in the semi-finals at Shenzhen Bay Sports Centre.
'She's a fighter on the court. She's playing really great, especially on the grass. She's attacking that ball really well. She doesn't let anything limit her'
He leads the men's seedings ahead of defending champ Roger Federer, with Bulgarian Grigor Dimitrov seeded third.
Images from Day 4 of the Wimbledon tennis championships played in London, on Wednesday.
Former Wimbledon runner-up Eugenie Bouchard successfully negotiated the qualifying draw on Thursday, beating Colombian Mariana Duque-Marino 6-3, 6-2 to secure a spot in next week's main draw.
Ash Barty's bid to end the host nation's long wait for a homegrown Australian Open champion will begin against Ukraine's Lesia Tsurenko
Italian Camila Giorgi has now beaten the Australian Open champion in each of their three hardcourt meetings.
Roger Federer warmed up for next month's Wimbledon championships by swatting aside David Goffin 7-6(2), 6-1 to win the Halle Open title for the 10th time on Sunday.
Fashion statements from Roland Garros...
Opelka, Kyrgios included in Team World for Laver Cup.
American Bethanie Mattek-Sands and the Czech Republic's Lucie Safarova claimed their third consecutive grand slam doubles title with a convincing 6-2, 6-1 victory over Australian duo Ashleigh Barty and Casey Dellacqua at the French Open on Sunday.
Tennis already sets the bar with equal prize money paid to women and men at Grand Slam tournaments
Petra Kvitova takes on Naomi Osaka in Saturday's Australian Open final with one of them set to emerge as a fresh champion at Melbourne Park.