The fifth-seeded Austrian, who saved two match points, will face Novak Djokovic on Saturday after the world number one's opponent Marin Cilic withdrew with food poisoning.
American tennis ace Serena Williams has maintained her No 1 spot, while German Angelique Kerber has slipped to the third in the latest women's tennis world rankings issued by the WTA.
Simona Halep's brave Australian Open campaign but the exhausted Romanian hit a dead end in the final as she crumbled in a thriller against Caroline Wozniacki.
We bring you best images from week one of the 2019 Australian Open Championships at Melbourne Park
Simona Halep and Caroline Wozniacki will compete for high stakes in Saturday's Australian Open final, having each needed to save match points to prevent a premature exit at Melbourne Park.
World number one Rafael Nadal set a new record of winning 50 consecutive sets on a single surface by beating Argentine Diego Schwartzman 6-3, 6-4 on Thursday to reach the Madrid Open quarter-finals.
World number two Simona Halep beat Maria Sharapova 6-2, 6-2 in the China Open third round on Wednesday for her first win over the Russian in eight attempts.
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.
Newly-crowned French Open champion Simon Halep said she was inspired to win her first Grand Slam title by her manager Virginia Ruzici's feats 40 years ago at Roland Garros.
2014 Wimbledon finalist Eugenie eliminated in 1st round.
The hard court, outdoor competition in Lexington, Kentucky, marked the WTA's first tournament in the United States since the coronavirus outbreak forced almost all sport into a long break earlier this year.
World number three Simona Halep refused to let illness beat her as she collected her ninth WTA Tour title by downing Timea Bacsinszky in the Shenzhen Open final on Saturday.
Maria Sharapova continued her mastery of Romania's Simona Halep with a high quality 6-4, 6-4 victory filled with bruising baseline rallies to edge closer to a last four berth at the WTA Finals on Tuesday.
As Serena Williams sits out a fourth straight Grand Slam, Simona Halep and Karolina Pliskova will join Caroline Wozniacki in a quest for a major breakthrough in Australia.
Even in her wildest dreams 11th seed Angelique Kerber could not have imagined that by the end of the first week of this year's Wimbledon, she would be the highest ranked player left in the top half of the women's draw.
Sharapova was granted a wildcard entry to the last Grand Slam of the season but received a tough first-round draw in the shape of Romanian Halep.
Flushing Meadows semi-finalist Vandeweghe will take on the winner of the contest between fifth seed Karolina Pliskova and Estonia's Anett Kontaveit in Sunday's final.
Serena Williams returns to the Arthur Ashe Stadium on Sunday
The claycourt Grand Slam at Roland Garros would now take place from Sept. 20-Oct. 4, dates that clash with several other events. With players already counting the cost of the tennis shutdown, the decision did not go down well.
Summary of sports events and persons who made news on Sunday
Men's second seed Rafael Nadal starts against Israel's Dudi Sela while three-time champion Novak Djokovic faces American Tennys Sandgren.
A clinical Roger Federer took a confident step towards a fourth Miami Open title on Wednesday, easing past 13th-seeded Russian Daniil Medvedev 6-4, 6-2 to book a spot in the quarter-finals.
French Open champion Rafael Nadal will face his 2012 Wimbledon nemesis, Lukas Rosol, on Thursday, knowing he will have to up his game to avoid another second-round exit at the hands of the Czech world number 52.
Andy Murray recovered from a slow start to beat Argentine qualifier Juan Ignacio Londero
Maria Sharapova had given warning that she was ready for a three hour French Open final - and she was true to her word, stopping the clock at three hours two minutes to lift the trophy.
Small details can be cruelly decisive in big matches as Simona Halep discovered after losing her composure following an umpire's call in Saturday's French Open final against Maria Sharapova.
Images from Day 6 of the Australian Open in Melbourne on Saturday.
Powerful Canadian Eugenie Bouchard overcame match-point jitters to claim an eventful 7-6(5), 6-2 victory over Romania's Simona Halep 7-6(5), 6-2 at Wimbledon on Thursday and reach a grand slam final for the first time.
Top seed Simona Halep was pooled with grand slam winners Maria Sharapova and Flavia Pennetta in a formidable looking Red Group for the end-of-season WTA Finals on Friday.
Halep became the first Romanian to reach the summit of the women's rankings when she beat French Open champion Jelena Ostapenko in the semi-finals of the China Open in Beijing, a feat she feels is the high point of her career to date.
Serena Williams sounded a warning for her fellow Australian Open contenders with a sleek win
One has nothing to lose, the other is expected to win on Saturday. Even though Romania's Simona Halep is the higher seed, at four, Maria Sharapova is the household name, the face on the billboards and is playing in her third successive French Open final.
Maria Sharapova made light of her long injury layoff by advancing to the last four of the WTA Finals with an unbeaten record in round robin play after the Russian breezed past Flavia Pennetta 7-5, 6-1 on Thursday, and booked a surprise passage to the semi-finals for Agnieszka Radwanska.
IMAGES from the matches played at the PNB Paribas Open at Indian Wells on Wednesday
Fifth seed Simona Halep of Romania took advantage of an error-prone display by American Madison Keys to claim her 14th WTA title with a 7-6(2), 6-3 victory in the Rogers Cup final in Montreal on Sunday.
Maria Sharapova recovered from a second-set wobble to dispatch third seed Agnieszka Radwanska 6-1, 6-4 on Saturday and set up a Madrid Open final clash against rising talent Simona Halep.
Italian Prime Minister Matteo Renzi dropped his busy weekend schedule and headed to New York on Saturday for the first all-Italian women's final at the US Open.
The 30-year-old is the first German woman to win Wimbledon since Steffi Graf in 1996.
Eleven years after their first meeting in the Australian Open final, Novak Djokovic and Jo-Wilfried Tsonga will take a trip down memory lane on Thursday to renew their rivalry in the second round in Melbourne.
Check out the various outfits that caused controversy during the tournament.