Iga Swiatek dragged Poland into the semi-finals of the United Cup with inspired performances in her singles and doubles matches against Italy.

Poland trailed after Lorenzo Musetti and Matteo Berrettini secured wins against Daniel Michalski and Hubert Hurkacz respectively, only for Swiatek and Magda Linette to level things with respective singles victories over Martina Trevisan and Lucia Bronzetti.

That sent the Brisbane city final to a decider in the mixed doubles, which Swiatek and Hurkacz won with ease 6-1 6-2 against Musetti and Camilla Rosatello, though there was a pause in the second set to dry rainfall on the court.

Despite defeat, Italy also advanced to the final four as the city finals loser with the best record.

It was more routine in Sydney as the United States eased to a 4-1 win against Great Britain.

Madison Keys came from a set down to beat Katie Swan, while Jessica Pegula eased past Harriet Dart 6-2 6-0 after Cameron Norrie had defeated Taylor Fritz in three sets.

Despite going a set behind, Frances Tiafoe came back to beat Dan Evans 3-6 7-5 6-3 to clinch the win for his country, before Pegula and Fritz added some gloss after beating Dart and Evans in the mixed doubles.

The third city final in Perth included a thriller as Greece's Stefanos Tsitsipas beat Borna Coric 6-0 6-7 (4-7) 7-5. Donna Vekic had no trouble getting Croatia on the board as she eased past Despina Papamichail 6-2 6-0.

Maria Sakkari put Greece 2-1 ahead when she beat Petra Martic 6-3 6-3, but Borna Gojo defeated Stefanos Sakellaridis in straight sets to make it 2-2.

However, Greece secured the win and their place in the last four after the pairing of Sakkari and Tsitsipas saw off Martic and Gojo 7-6 (8-6) 6-4.

Greece will take on Italy in the semi-finals, while Poland face the USA, with both taking place in Sydney on Friday.

Wins for Hubert Hurkacz and Magda Linette saw Poland advance to the City Finals of the United Cup in Australia on Tuesday.

Hurkacz made it through a tough encounter against Stan Wawrinka 7-6 (7-5) 6-4 to give Poland a 2-1 lead in their Group B tie with Switzerland in Brisbane, before Linette came from behind to beat Jil Teichmann 5-7 6-4 6-1 to clinch it.

Poland will face Italy in the Brisbane final, whose 5-0 whitewash of Norway included Matteo Berrettini sealing victory with a 6-4 6-4 win over Casper Ruud.

In Perth, Croatia advanced to the City Finals after a dramatic day that saw Caroline Garcia get France on the board with a straight sets win against Petra Martic, before Adrian Mannarino came from a set down against Borna Gojo to serve for the match as he looked to bring his country level at 2-2.

However, Gojo broke back in a tense encounter before winning a deciding tie-break to send Croatia through to face Greece, who sealed a 4-1 win against Belgium.

Stefanos Sakellaridis recovered from going a set behind to beat Zizou Bergs, before Maria Sakkari overcame Elise Mertens 6-1 7-5, with Sakkari and Stefanos Tsitsipas adding some gloss to the score with a mixed doubles success against Kirsten Flipkens and Michael Geerts. 

Spain and Australia were unable to progress but the hosts at least had the consolation of securing a victory thanks to wins for Jason Kubler against Albert Ramos-Vinolas, and the mixed doubles duo of John Peers and Sam Stosur against Jessica Bouzas Maneiro and David Vega Hernandez.

The USA had already secured their Finals berth against Great Britain in Sydney, but were ruthless as they finished off their tie against Germany to win 5-0.

After Jessica Pegula beat Laura Siegemund 6-3 6-2, Frances Tiafoe also defeated Oscar Otte in straight sets, before the American duo combined to beat Siegemund and Daniel Altmaier 6-7 (5-7) 6-4 10-7 to complete a clean sweep.

Maria Sakkari sealed victory for top-seeded Greece over Bulgaria in the United Cup with a straight sets win over Viktoriya Tomova.

Team-mates Stefanos Tsitsipas and Despina Papamichail had already won their matches on Thursday, and Sakkari's 6-3 6-2 triumph gave Greece an unassailable 3-0 lead.

Michail Pervolarakis was defeated by Dimitar Kuzmanov in the final singles match between the nations, but Tsitsipas and Sakkari teamed up to earn Greece a 6-4 6-4 success in the doubles encounter to end on a high.

World number 16 Matteo Berrettini helped Italy topple Brazil by overcoming Thiago Monteiro 6-4 7-6 (9-7).

That gave Italy a 2-1 lead, and Lucia Bronzetti finished the job by demolishing Laura Pigossi in straight sets, with Brazil powerless to overturn the deficit despite Berrettini and Camilla Rosatello's defeat in the doubles match.

US Open semi-finalist Frances Tiafoe clinched a win for the United States over the Czech Republic after opponent Tomas Machac retired with an ankle injury with the score at 6-3 2-4.

Petra Kvitova had defeated Jessica Pegula 7-6 (8-6) 6-4 in the third singles match to give Czech Republic hope, but Tiafoe's win settled the contest before Pegula and Taylor Fritz joined up for success in the doubles.

Great Britain were 3-2 victors over Australia despite a pair of defeats on day two in Sydney.

Cameron Norrie's triumph over Nick Kyrgios' replacement Alex De Minaur on day one had helped Great Britain to a 2-0 lead over the hosts, and Harriet Dart prevailed over Maddison Inglis to wrap up the victory.

Dan Evans was then beaten 6-3 7-6 (7-3) by Jason Kubler before Dart and Jonny O'Mara fell to defeat in the doubles, but Great Britain's strong start saw them through.

France and Switzerland completed 5-0 sweeps of Argentina and Kazakhstan respectively, with Caroline Garcia winning both her singles and doubles matches in straight sets while Stan Wawrinka saw off Alexander Bublik 6-3 7-6 (7-3).

Aryna Sabalenka kept her hopes of progressing to last four of the WTA Finals alive with a straight-sets win over Jessica Pegula.

Sabalenka claimed her second win in three matches with a 6-3 7-5 triumph against her American opponent in Fort Worth, Texas. 

Having dominated the opening set, Sabalenka twice failed to consolidate a break of serve in the second.

However, she struck for a third and final time to claim a win that means she will go through in second place in Group Nancy Richey if Maria Sakkari, who is already through, wins a set against Ons Jabeur in the final round-robin match. Pegula exits having lost all three of her matches.

"I’m just happy that I was really focused from the beginning to the end and I was able to finish this match in two sets," Sabalenka said afterwards.

Sabalenka struck 31 winners en route to victory, hitting at least 30 for the 16th match this season.

Only Caroline Garcia (18) and Elena Rybakina (17) have had more such matches on the WTA Tour in 2022, indicating that, if Sabalenka does go through, she has the firepower to threaten to claim the trophy.

BREAK POINTS WON

Sabalenka - 6/12

Pegula - 3/5

ACES/DOUBLE FAULTS

Swiatek - 1/3

Kasatkina - 1/1

World number two Ons Jabeur kept her chances of WTA Finals success intact as she came from behind to defeat Jessica Pegula.

Having lost to Aryna Sabalenka in her opening match in Fort Worth, US Open and Wimbledon runner-up Jabeur was staring down a group-stage exit from the tournament when she found herself 1-6 2-3 down halfway through the second set on Wednesday.

Yet the 28-year-old hit back to triumph 1-6 6-3 6-3 over her American opponent, the world number three, who has now lost both of her matches in the Nancy Richey group.

Jabeur reeled off four straight games to take the momentum and, after fending off four break points to hold serve in the first game of the deciding set, did not look back, clinching a decisive break to nose 5-3 ahead.

A stray Pegula cross-court forehand wrapped up Jabeur's comeback win, and the Tunisian, who is aiming to become the first African player to reach the semi-finals at the season-ending tournament, can now turn focus to her final group game against Maria Sakkari, who she has faced three times previously, losing twice. 

Jabeur's victory was her third against a top-three opponent, after beating Simona Halep in 2018 and Karolina Pliskova in 2020, while only world number one Iga Swiatek has won more matches this season (47).

BREAK POINTS WON

Jabeur - 4/10

Pegula - 4/9

WINNERS/UNFORCED ERRORS

Jabeur - 27/29

Pegula - 11/16

ACES/DOUBLE FAULTS

Jabeur - 1/2

Pegula - 0/5

Maria Sakkari defeated Jessica Pegula 7-6 (8-6) 7-6 (7-4) in the opening match of the WTA Finals on Monday in Fort Worth.

It was a highly anticipated first match after the same two competitors faced off in the Guadalajara Open final just eight days ago, with Pegula taking that contest 6-2 6-3 in convincing fashion.

That final lasted just 71 minutes, but the rematch would be a far more gruelling affair, with the first set alone reaching 73 minutes.

Illustrating the even nature of the contest, both players won exactly 52 out of 104 total points played in the opening set, with both players converting three of their five break point opportunities.

Sakkari created a slight edge in the second set, winning 52 per cent of the points (42-of-81) and creating four break point opportunities to Pegula's one.

Pegula took her only chance to break, and then saved two match points to force a tiebreak, but Sakkari would not be denied as she secured the victory and moved to the top of the Group B standings.

BREAK POINTS WON

Sakkari - 4/9

Pegula - 4/6

ACES/DOUBLE FAULTS

Sakkari - 3/1

Pegula - 3/4

WINNERS/UNFORCED ERRORS

Sakkari - 22/22

Pegula - 22/28

There will be one racing certainty when the WTA Finals gets under way: a new champion will be crowned.

Iga Swiatek heads the list of contenders to carry off the trophy in Fort Worth, Texas, having enjoyed a spectacular season.

Ascendant Americans Jessica Pegula and Coco Gauff will be chasing a home victory, while Tunisia's Ons Jabeur has reached finals at Wimbledon and the US Open so loves the big occasion.

Ahead of the tournament getting under way on Monday, Stats Perform has taken a look at the eight-player field.

Swiatek still the player to beat

With no past winner in the line-up, there is every reason to look to the world number one, Swiatek, as favourite.

The 21-year-old Polish player has eight titles this year, lifting trophies at Doha, Indian Wells, Miami, Stuttgart, Rome, the French Open, the US Open and San Diego.

Indeed, she is the only grand slam singles winner in the draw, with Ash Barty having retired and Elena Rybakina absent after no ranking or race points were awarded at Wimbledon, where she was a surprise champion.

Rybakina's absence calls into question the meritocracy of this year's tournament, which is intended to showcase the top performers on tour, yet there can be no doubt the season's premier performer is in the draw.

French Open and US Open winner Swiatek's remarkable run of 10 straight-sets victories in finals (dating back to the 2020 French Open) was finally ended by Barbora Krejcikova, who sprang a shock by winning in Ostrava in early October.

But by getting back to winning ways a week later in San Diego, scrapping for a three-set victory over Donna Vekic in the title match, Swiatek produced a typically impressive response, beating Qinwen Zheng, Gauff and Pegula on her way through the draw to improve to 64-8 in her win-loss record for the year.

Here is a measure of her dominance this season: Swiatek headed the 'Race to the WTA Finals' rankings with 10,335 points, with the players in second (Jabeur) to eighth place (Daria Kasatkina) having tallies ranging between 4,555 and 2,935 points.

Is Pegula the chief rival to Swiatek?

She might not have been the player that would have sprung to mind even a month ago, but Pegula's victory at the Guadalajara Open this month was an eye-opener.

Beginning by saving match points in a thrilling three-setter against Rybakina, Pegula took down grand slam winners Bianca Andreescu, Sloane Stephens and Victoria Azarenka before swatting aside Maria Sakkari in the final.

Pegula has reached quarter-finals at the Australian, French and US Opens in 2022, and she has a tour-high 39 wins in WTA 1000 events since the beginning of last year.

She is up to third in the WTA rankings, one ahead of Coco Gauff, with the United States now having two women in the top five for the first time since October 2010, when Serena Williams was number two and sister Venus sat fourth.

As Pegula said after the Guadalajara final: "I'm definitely a very ambitious person. A little bit of a perfectionist, as well. I don't think you could win if you weren't ambitious, especially at this level.

"I feel like it's going to give me more motivation going forward knowing I can win these big titles. I think it will give me a lot of confidence ending the year, going into next year."

These are spirited words. She heads into the tournament with a 0-4 record against Swiatek in 2022, however.

Who's in, who's out, what's it all about?

As well as Swiatek and Pegula, the field for the eight-day tournament includes Caroline Garcia, Aryna Sabalenka and Sakkari, who have all featured at the WTA Finals in the past.

Four players make their debuts, including Pegula, who is joined as a newcomer by Jabeur, Gauff and Daria Kasatkina.

Gauff, 18, has become the 14th player aged under 19 to reach the WTA top five since the rankings were introduced in 1975.

She would not be the youngest WTA Finals champion, were she to lift the title, as Monica Seles has a tight grip on that record, having triumphed at the age of 16 years and 11 months at the 1990 edition.

Last year's champion Garbine Muguruza is absent. The Spaniard was expected by many to push on and enjoy a stellar 2022 season, but it did not play out that way, with the former French Open and Wimbledon winner sliding to 57th in the world rankings after a dismal campaign.

It goes to show that whoever prevails in Fort Worth, we should be cautious about treating the outcome as an indication of what to expect in the new year.

Jessica Pegula will rise to third in the world rankings after defeating Maria Sakkari 6-2 6-3 in the final of the Guadalajara Open on Sunday.

It is surprisingly only the second singles title of Pegula's career on the WTA Tour, and the 28-year-old's first WTA 1000 title.

Against Sakkari, the American showcased her complete game, controlling the opening set with her serve before using her powerful returning ability to close things out.

In the first set, Pegula converted 10 of her 11 accurate first serves into points, winning 76 per cent of her total service points while facing no break opportunities. She only had two break point opportunities herself, and she took both.

Her success rate on service points dropped to 60 per cent in the second set, but she made up for it with her returns, winning 55 per cent of the points on Sakkari's serve while breaking three times to pull away.

It caps off a remarkable week for Pegula, who collected straight-sets wins over top-50 opponents Victoria Azarenka, Sloane Stephens and Bianca Andreescu in her three matches leading to the final.

While it was the last tournament of the season, both Pegula and Sakkari finished in the top-eight for world ranking points this season and therefore have qualified for the WTA Finals, beginning on October 31.

World number five Jessica Pegula clinched a berth in her second WTA final of the year with a straight-sets victory over Victoria Azarenka at the Guadalajara Open on a rainy Saturday.

Pegula defeated the former world number one Belarussian 7-6 (7-3) 6-1 in one hour and 29 minutes, having fought back from a 4-1 first-set deficit.

The American will need to wait until Sunday to learn her opponent, with rain forcing Maria Sakkari and Marie Bouzkova's semi-final to be suspended and eventually postponed with the Greek leading 7-5.

Pegula's triumph was her 40th win of the season, becoming the 10th American woman to achieve that feat.

The victory also made it four successive Grand Slam winners that Pegula has overcome to reach the final in Guadalajara, knocking off Sloane Stephens, Bianca Andreescu and Elena Rybakina along with Azarenka.

Pegula converted three of eight break points, while Azarenka took her only break point of the match to help her open up the 4-1 first-set lead.

The American proved better on her second serve, while she managed to win 15 of 26 points on Azarenka's second serve.

Sakkari and Bouzkova's semi-final will resume at 1pm local time on Sunday, with the fourth seed leading 7-5 after an epic first set that lasted 84 minutes.

The Greek showed off her grit after fluffing an early 3-1 lead by taking her eighth set point, winning a 22-shot rally - the longest of the first set - to break Bouzkova in the 12th game.

The final is due to commence no earlier than 6pm local time on Sunday, meaning it will be a physical test for the victor.

Maria Sakkari secured the eighth and final place at the WTA Finals after defeating Veronika Kudermetova 6-1 5-7 6-4 to reach the semi-finals at the Guadalajara Open on Friday.

The WTA Finals – which is contested by the women who finish top-eight for the season in ranking points – already had seven entrants locked in, with the eighth to be decided by the winner between world number six Sakkari and world number 12 Kudermetova.

Sakkari's ability to fight her way out of tough situations proved to be the difference as she saved 14 of the 15 break points she faced, while converting three of her nine chances. In the deciding third set, Sakkari made the most of her only break point, while saving all five of Kudermetova's chances to get back into the contest.

She will play Marie Bouzkova in the semi-final after the unseeded Czech was the beneficiary of Anna Kalinskaya's injury retirement in the first set, with Bouzkova leading 5-2.

It continues a terrific run of form for the 24-year-old Bouzkova, who is 19-3 in her past 22 matches, with her only losses in that span coming against world number 20 Karolina Pliskova, Wimbledon champion Elena Rybakina and world number two Ons Jabeur.

On the other side of the draw, Jessica Pegula breezed through the challenge of Sloane Stephens to win 6-2 6-2, which would have set up a tantalising all-American matchup against her doubles partner and rising star Coco Gauff, but she could not hold up her end of the bargain.

Gauff fell 7-6 (7-2) 4-6 6-3 to Victoria Azarenka, giving the Belarusian her third consecutive top-20 win after earning her spot in the quarter-final with victories over world number eight Paula Badosa and world number 15 Madison Keys.

American teenager Coco Gauff showed why she deserves to be at this year's WTA Finals with a commanding 6-0 6-3 victory over Martina Trevisan at the Guadalajara Open.

The fifth seed clinched her maiden spot at the season-ending WTA Finals on Wednesday and backed that up by securing her third WTA 1000 quarter-final on Thursday.

Gauff reeled off the first nine games of the match against Trevisan, where she triumphed in one hour and one minute. The 18-year-old came under pressure from Trevisan, who generated nine break points for the match but Gauff saved all bar one of them.

World number one Iga Swiatek (47) is the only player to have won more matches this year in straight sets than Gauff (32).

Gauff will face Victoria Azarenka in the quarter-finals after the Belarusian toppled 13th seed Madison Keys 6-4 6-7 (4-7) 6-1 in two hours and 13 minutes.

Two-time Australian Open winner Azarenka swept aside Keys in 32 minutes in the third set after a titanic battle in the opening two frames, winning 26 of the 37 final-set points. Azarenka's quarter-final appearance is her 34th since 2009, with only four players having more during the span; Agnieszka Radwanska (42), Simona Halep (39) and Caroline Wozniacki (36).

Third seed Jessica Pegula advanced to the last eight with a 6-4 6-4 victory over former US Open champion Bianca Andreescu. 

The American, who survived three match points against Elena Rybakina on Wednesday, trailed early against the Canadian but took control of the match. Pegula will face Sloane Stephens in the quarter-finals after she toppled 2022 US Open semi-finalist Caroline Garcia 7-6 (8-6) 7-5.

On the day her WTA Finals berth was confirmed, seventh seed Daria Kasatkina lost 6-2 2-6 6-3 to Anna Kalinskaya in two hours and 14 minutes.

Fourth seed Maria Sakkari fought back to win 5-7 6-3 6-3 over 14th seed Danielle Collins, while Marie Bouzkova copped a bagel before triumphing 0-6 7-5 6-3 over Liudmila Samsonova.

Sakkari will next meet eighth seed Veronika Kudermetova who beat Jelena Ostapenko 6-4 6-4. Bouzkova will take on Kalinskaya in the last eight.

It was a great day for the highly ranked Americans at the Guadalajara Open on Wednesday, headlined by world number five Jessica Pegula and her 2-6 6-3 7-6 (10-8) comeback win over Wimbledon champion Elena Rybakina.

Pegula, who is now locked into the top-eight and therefore will qualify for the WTA Finals, struggled to win points on her serve in the opening set, but raised her 57 per cent success rate up to 69 per cent in the second set, and 66 per cent in the decider.

The American had to come from a break down in the second set to keep her tournament alive, and she will now face Canada's Bianca Andreescu in the third round.

Meanwhile, fellow United States star Coco Gauff was too good for Italy's Elisabetta Cocciaretto, winning 7-6 (7-1) 6-3 to book a third-round clash with another Italian, Martina Trevisan, who earned her way there with a 6-0 4-6 6-3 win over Katerina Siniakova.

The other two seeded Americans were also successful, with 13th seed Madison Keys coming from a set down to defeat Ajla Tomljanovic 3-6 6-4 6-3, and 14th seed Danielle Collins repelled the challenge of Magdalena Frech 6-3 6-4.

There were positive signs for former world number five Eugenie Bouchard, who ended up losing, but showed she still has her talent by taking a set off world number 23 Jelena Ostapenko in a 7-5 2-6 6-1 result.

Russian pair Anna Kalinskaya and Liudmila Samsonova both emerged in three-set outings, with Kalinskaya outlasting Elise Mertens 6-4 0-6 7-5, while Samsonova upset world number four Aryna Sabalenka 6-4 2-6 6-2.

World number 12 Veronika Kudermetova kept her WTA Finals hopes alive with a 6-4 7-5 win over Donna Vekic, and the Czech Republic's Marie Bouzkova ousted Colombia's Camila Osorio 6-3 6-1.

In the late window, Sloane Stephens eliminated Olympic gold medalist Belinda Bencic 6-4 6-4, and top overall seed Paula Badosa retired due to injury after losing the first set 6-2 against Victoria Azarenka.

World number one Iga Swiatek qualified for her ninth WTA Tour of the year, coming from a set down to get past fourth seed Jessica Pegula at the San Diego Open on a rain-affected Saturday.

Swiatek was at her dominant best against Pegula after dropping the opening frame, breaking her opponents' serve four times in the latter two sets to triumph 4-6 6-2 6-2 in two hours and six minutes.

The Pole extended her domination of Pegula this year, winning all four of their encounters in 2022, while the victory is her 63rd of the season, equaling Angelique Kerber's mark from 2016. Swiatek is also 23-1 in the United States this season.

Swiatek finished with 22-8 forehand winners, while she won 75 per cent of her second serves, compared to Pegula's 38 per cent.

After Pegula won the first set that included three breaks of serve, the match was halted for more than an hour due to rain, with Swiatek revealing post-game she passed time with crosswords.

That worked for the top seed who raced to a 3-0 second-set lead after the resumption and did not drop serve for the remainder of the match, saving three break points at 2-2 in the third.

The 2022 French Open and US Open champion will take on either Croatian qualifier Donna Vekic or American world number 19 Danielle Collins in Sunday's decider after their semi-final was ultimately suspended due to rain.

Collins leads Vekic 4-6 6-4 4-2 with the match restarted three times after rain, before the call was made to postpone it until Sunday, no earlier than 12.30pm local time, with the final to be played later in the day.

World number one Iga Swiatek thrashed Coco Gauff to clinch a third straight WTA Tour semi-finals berth after moving into the San Diego Open final four on Friday.

Swiatek was irrepressible against the 18-year-old American, extending her head-to-head dominance to 4-0 with a 6-0 6-3 victory in 66 minutes.

The Pole won the first eight games of the match and always appeared in control with her reliable forehand a key feature.

Swiatek laced 13 winners with only nine unforced errors, breaking Gauff five times. The American committed 26 unforced errors for the match.

The victory is Swiatek's 62nd of the season, moving her closer to Angelique Kerber's 2016 mark of 63.

Swiatek will face fourth seed Jessica Pegula in the semi-finals as the Pole aims for her eighth WTA title of the season.

Pegula secured her berth in the final four with a 6-4 7-5 victory over compatriot Madison Keys in their first-ever meeting in one hour and 34 minutes.

Third seed Aryna Sabalenka was a surprise casualty as Croatian qualifier Donna Vekic continued her excellent week with a 6-4 6-7 (5-7) 6-1 in two hours and 37 minutes.

World number 77 Vekic has beaten former world number three Maria Sakkari and two-time major finalist Karolina Pliskova this week.

Second seed Paula Badosa was also bundled out by American Danielle Collins 7-6 (7-5) 6-4. Collins will meet Vekic in the last four.

World number one Iga Swiatek commenced her San Diego Open campaign with a hard-fought three-set victory over Chinese lucky loser Zheng Qinwen in rainy conditions on Thursday.

The 2022 French Open and US Open champion triumphed 6-4 4-6 6-1 in two hours and two minutes, bouncing back strongly after losing the second set.

Zheng's power and forehand top spin proved challenging for the Pole, who was solid from the baseline to secure her 11st tour quarter-finals appearance this season.

The Chinese had broken Swiatek to lead 1-0 in the third set, but the top seed responded in trademark style, improving her record in the United States this season to 21-1.

Swiatek will take on eighth seed Coco Gauff in the quarter-finals, with the match-up marking a re-match of this year's French Open final.

Gauff worked her way into the last eight with a 6-4 4-6 6-3 victory over 2019 US Open champion Bianca Andreescu.

The 18-year-old American also had to fight back from a set down in the third set to win in a match that lasted just over two-and-a-half hours.

Third seed Aryna Sabalenka fought back from a lopsided opening set to knock out American Sloane Stephens 1-6 6-3 6-2 in two hours and one minute. The Belarussian will take on Donna Vekic in the next round.

Second seed Paula Badosa eased into the last eight, winning in 53 minutes against American qualifier Louisa Chirico 6-0 6-3. Badosa will face Danielle Collins in the quarter-finals.

Madison Keys triumphed over eighth seed Daria Kasatkina 6-4 6-3 in one hour and 27 minutes to secure a quarter-final date with fourth seed Jessica Pegula.