Badosa was defeated in just 78 minutes by Zheng Qinwen, with the number one seed going down 6-3 6-2.
It was 19-year-old Zheng's first completed win against a top 10 opponent in her career, and she said afterwards: "Even though the score was like this, there were a lot of emotions for me in this match and I'm very proud of myself. It's not a surprise. I always knew I had the level, I just had to make it."
Second seed Garcia hit 27 aces in her match against Zhang Shuai, the most in a single WTA-level contest since Kristyna Pliskova against Monica Puig in Luxembourg 2019 (28), but it was not enough as she lost two tie-breaks to lose 4-6 7-6 (7-5) 7-6 (7-5).
Number three seed Garbine Muguruza had more success as she beat Greek opponent Despina Papamichail 6-4 6-2, while Claire Liu also eased to a win against Elise Mertens 6-4 6-1, and will play Zheng in the quarter-finals.
Eighth seed Elena Rybakina suffered a first-round exit as she lost to Liudmila Samsonova 6-2 6-4, who will play Xinyu next.
The seeds fared better over at the Korea Open, with Emma Raducanu sealing a first-round win against Moyuka Uchijima 6-2 6-4, while Magda Linette also eased past Arianne Hartono, 6-2 7-5, though fifth-seed Varvara Gracheva was knocked out by Anna Blinkova 6-4 7-6 (7-1).
In the second round, third seed Ekaterina Alexandrova is through after beating Han Na-lae 6-1 6-3, as is Lin Zhu of China following her straightforward 6-1 6-3 victory against India's Ankita Raina.
There were also wins for Tatjana Maria against Kimberly Birrell, and 17-year-old Andorran Victoria Jimenez Kasintseva against eighth seed Rebecca Marino.
Last month's Wimbledon finalist Jabeur proved too good for American Madison Keys 7-5 6-1, winning in one hour and 22 minutes.
Jabeur, playing for the first time since Wimbledon, converted six of nine break points for the match, dominating the second set where she won 90.9 per cent first serve points.
Second seed Badosa survived a scare to win over qualifier Elizabeth Mandlik 6-2 5-7 7-6 (7-5) in two hours and 31 minutes.
Eighth seed Karolina Pliskova was knocked out by American Amanda Anisimova 3-6 7-5 6-1, while last year's runner-up Daria Kasatkina beat Taylor Townsend 6-4 6-0.
Two-time major winner Halep was forced to retire due to illness and top seed Jessica Pegula was bundled out by Daria Saville at the Citi Open.
In warm conditions, the 30-year-old Romanian battled throughout the match but eventually retired down 7-5 2-0 to Anna Kalinskaya after one hour and six minutes.
Halep had fought back from a 4-0 deficit in the first set to square it up at 5-5, before losing the first set.
However, the former world number one succumbed to illness early in the second set, handing Kalinskaya her passage into the quarter-finals.
On a dramatic day for the Citi Open favourites, world number seven Pegula was eliminated by Saville in straight sets in one hour and 38 minutes, 7-5 6-4.
Pegula was not helped by a first-serve percentage of 44.8 per cent, while she struggled to convert break points, with the Australian saving nine of 10 for the match.
Saville's win means she is 3-3 against top 20 opponents this year, progressing into the last eight where she will face Canadian qualifier Rebecca Marino.
Marino, who beat Venus Williams in her return to singles in the first round on Monday, knocked off Germany's Andrea Petkovic 6-3 3-6 6-1.
Estonian sixth seed Kaia Kanepi progressed into the quarters where she will face Kalinskaya after beating China's Zhu Lin 4-6 6-4 6-4.
Seventh seed Kasatkina had no answers in Stuttgart as she fell to a 6-1 6-1 defeat against Badosa, who recorded the ninth top-10 victory of her career and first in exactly 12 months.
Badosa has won 29 clay-court matches in the last three seasons – only Ons Jabeur (35) and Iga Swiatek (30) have won more – but the Spaniard had to enter this tournament as a wildcard.
The 25-year-old was as high as second in the world last year but has fallen to 31st, and she outlined her goal to reach the top once more after her first-round win set up an all-Spanish meeting with Cristina Bucsa.
When asked about her ambitions to return to the world's top three, Badosa said: "That's what I'm working on every day. That's one of my goals – I want to be back on the top.
"I like to play big matches, I like to be in the last rounds of the tournaments. I still know I have that level. I still know I was that player. I still believe in myself, and I hope I'm back there very soon."
Jelena Ostapenko eased into the second round with similar dominance after downing Raducanu 6-2 6-1 in just 58 minutes, teeing up a meeting with world number four Ons Jabeur on Wednesday.
Latvian Ostapenko powered 19 forehand winners and went unbroken, acknowledging in her on-court interview that familiar aggression was key to her success in the battle of two one-time grand slam winners.
"I knew against her the main thing was to step in the court," said former French Open winner Ostapenko. "I missed some balls, but I tried to be aggressive all the time when it was possible.
"Just try to take the ball early, don't give her many chances. And finally, I'm back on clay, my favourite surface."
Barbora Krejcikova was another straight-sets winner, scoring a 6-2 6-0 triumph over Liudmila Samsonova, with the reward for the 2021 Roland Garros champion being a tricky clash against second seed and Australian Open winner Aryna Sabalenka.
There was no such ease for Anastasia Potapova in a battling 6-3 3-6 7-6 (7-4) victory over Petra Martic, the Russian's ninth third-set win in 2023 – no WTA Tour player has managed more.
Tatjana Maria overcame Ylena In-Albon 6-2 4-6 7-6 (7-4) in another enticing clash, while Beatriz Haddad Maia advanced after Martina Trevisan was forced to retire when trailing 7-5 1-1 due to a right thigh injury.
Badosa, the world number 62, ended Raducanu's promising run in the American capital with a 4-6 7-5 6-4 triumph on Friday.
The Spaniard needed two hours and 45 minutes to overcome the 2021 US Open champion and reach her first semi-final of the season.
"She was playing amazing, honestly," Badosa said after meeting Raducanu for the first time.
"She took me to the limit in all the phases; physically, mentally, tennis-wise. I knew I had to play very aggressive.
"In the beginning, I was missing a little bit so I had to adjust. She was also making me miss. She's very, very fast. I never played her, so it's the first time I experienced her.
"I was surprised how smart she is on court and I like the way she plays."
Badosa will next face Caroline Dolehide, who beat Amanda Anisimova in straight sets.
Badosa and Kontaveit both got as high as number two in the world rankings last year, but neither currently sits in the top 10, with Badosa down at number 11 and Kontaveit 17th.
Tuesday's tussle in South Australia went the way of the Spaniard, with Badosa scoring a 6-4 6-3 win against her Estonian opponent.
She had five aces and only one double fault, winning 77 per cent of points when landing a first serve in.
Another Estonian awaits her at the last-16 stage in veteran campaigner Kaia Kanepi and Badosa is happy with how she had begun the tournament.
"I think I started really good," Badosa said in an on-court interview. "I was serving very well. I was going for the first shots."
Asked about signs of improvement with her serve, Badosa said: "It depends on the day, to be honest. I worked a lot this past 10 days and was really focused on that, so I'm happy about that."
Czech Barbora Krejcikova, another player with a career-high ranking of number two, earned a second-round shot at Russian Daria Kasatkina after winning 6-2 7-6 (7-3) against last year's runner-up Alison Riske-Amritraj.
Other winners in Adelaide on Tuesday were Amanda Anisimova, Zheng Qinwen, Veronika Kudermetova, Anna Kalinskaya and Katerina Siniakova.
At the Hobart International, second seed Elise Mertens fell 6-4 6-4 to fellow Belgian Maryna Zanevska, while French third seed Alize Cornet was also knocked out, losing 6-4 6-2 to Italy's Elisabetta Cocciaretto.
Former Australian Open champion Sofia Kenin had no such trouble, seeing off China's Zhu Lin 6-2 6-2
Bencic was due to go up against Veronika Kudermetova in the second scheduled semi-final on Friday, only for the Russian to withdraw due to a hip injury.
It was a similar story for Kasatkina, who received a walkover after Paula Badosa pulled out of their match, citing a thigh problem.
While Bencic and Kasatkina will now get the chance to claim a trophy early in the season, the focus for Badosa and Kudermetova will be on regaining fitness in time for the Australian Open, which starts next week.
Badosa was confident she can recover for the upcoming major, where she has been drawn against American Caty McNally in the first round.
"I'm really disappointed that I had to withdraw because I was really looking forward to the match," Badosa told reporters.
"When I was playing [against Beatriz Haddad Maia], it was a very tough match, especially physical, so I felt a little bit in my abductor. I felt like I pulled it a little bit.
"I feel a little bit worse, so I have the Australian Open ahead, and I hope I can recover for that."
Badosa needed two hours and 35 minutes to get past the Brazilian on Thursday, having knocked off Anett Kontaveit and Kaia Kanepi in the earlier rounds.
"I played three really good matches," the Spaniard said. "I think that helps me, as well, on my confidence for the tournaments ahead. Now it's something that I cannot control, so it is what it is."
At the Hobart International, Elisabetta Cocciaretto set up a showdown with Lauren Davis.
Sofia Kenin, the 2019 champion, fell 7-5 4-6 6-1 to world number 67 Cocciaretto, who has reached her first Tour-level singles final.
"It’s unbelievable for me to be here in the final of such a great tournament, and I’m really happy about my performance," Cocciaretto said.
"[Kenin is] a very good player, I was a junior when she won the grand slam [2020 Australian Open], so for me it's an honour to play against her."
Davis, meanwhile, saw off Anna Blinkova in straight sets. She has not featured in a Tour-level final since clinching the trophy in Auckland in 2016.
Bencic, the 10th seed, appeared overmatched early on as she won less than half (12-25) of her service points in the opening set, getting her serve broken twice.
But as Bencic found her rhythm with her serve – winning 77 per cent of her first-serve points in the second set (24-31) – she wrestled the momentum away from Badosa, dominating the tie-break before breaking in the opening game of the third frame.
Bencic will face Ekaterina Alexandrova in the semi-final after the Russian dominated Magda Linette 6-0 6-2.
For the match, Alexandrova won 62 per cent of her points on serve (28-45) and 62 per cent of her points on return (26-42).
Fourth seed Ons Jabeur needed just 64 minutes to get the job done 6-3 6-2 against Anhelina Kalinina, winning 81 per cent of her successful first serves (29-36).
Jabeur will play 15th seed Amanda Anisimova in the semi-final after the American cruised past compatriot Coco Vandeweghe 6-1 6-2.
It was not a perfect performance from Anisimova, but she saved all five break points that she faced to never allow her opponent to get close.
Meanwhile, in Bogota at the Copa Colsanitas, top seed Camila Osorio is through to the semi-final after defeating Elina Avanesyan 6-1 6-4, where she will meet Laura Pigossi.
Usually one of her stronger weapons, Gauff's serve was a liability on Friday, with six double faults in the first set alone to drop the opening frame despite breaking Badosa twice.
In the second set, while Badosa was converting 92 per cent (11-of-12) of her accurate first serves into points, Gauff's figure was down at 53 per cent (eight-of-15) as the Spaniard's return game was at its best.
Badosa will meet seventh seed Daria Kasatkina in the semi-final after the Russian beat Belarus' Aryna Sabalenka 4-6 7-5 6-0. The longer the match went, the less effective Sabalenka became with her ability to return serve.
In the first set, which Sabalenka won, she was successful in 53 per cent (19-of-36) of the points against Kasatkina's serve, and that number plummeted to 14 per cent (two-of-14) in the decider.
Third seed and Wimbledon finalist Ons Jabeur was eliminated by ninth seed Veronika Kudermetova 7-6 (7-5) 6-2, and she will meet unseeded American Shelby Rogers in the second semi-final after she defeated Amanda Anisimova 6-4 6-4.
Meanwhile, in Washington at the Citi Open, Emma Raducanu felt the effects of her gruelling match 24 hours prior as she went down 7-6 (8-6) 6-1 to Liudmila Samsonova.
On Thursday, Raducanu played in the longest two-set match of the WTA season as she eventually made her way through two tiebreakers against Camila Osorio in two hours and 49 minutes, and she ran out of steam after another tough tie-break against Samsonova.
Samsonova will play China's Xiyu Wang in the semi-final after another upset, knocking out fourth seed Victoria Azarenka in convincing fashion 6-1 6-3.
Estonia's Kaia Kanepi booked her place in the second semi-final after a 6-7 (4-7) 6-4 6-3 win against Anna Kalinskaya, where she will meet Daria Saville after the Australian got the better of Canada's Rebecca Marino 6-1 7-5.
Despite making a strong start, fourth seed Pliskova faltered and lost 1-6 6-4 6-4 to the world number 127 in the pair's last-32 match.
Boulter said: "I'm super-proud of myself today. I went out there and didn't feel great on court, and I worked so hard to battle and fight, and against a player like that it means so much to me, coming through that."
There was another major shock win for a British player later in the day as Jodie Burrage knocked out top seed Paula Badosa, the world number 169 triumphing 6-4 6-3 against a player who will be seeded fourth at Wimbledon.
Defending champion Jelena Ostapenko beat Ajla Tomljanovic 6-4 6-4 and two-time Wimbledon winner Petra Kvitova saw off Donna Vekic 6-1 7-6 (7-1), while Beatriz Haddad Maia's strong form on grass continued with a 6-4 3-6 6-3 victory over Estonian veteran Kaia Kanepi.
Brazilian left-hander Haddad Maia is coming off the back of title wins in Nottingham and Birmingham and stretched her winning run on grass to 11 matches.
There were also wins in Eastbourne for Camila Giorgi, Madison Keys and Barbora Krejcikova, but Greek third seed Maria Sakkari bowed out, losing 3-6 7-5 6-4 to Ukrainian Anhelina Kalinina.
At the Bad Homburg Open in Germany, the 2019 Wimbledon champion Simona Halep scrambled for a 4-6 6-3 6-4 win against Katerina Siniakova, and sixth seed Amanda Anisimova came from a set down to see off Alison van Uytvanck in a third-set tie-break.
Bianca Andreescu saw off Martina Trevisan 6-3 6-1 and Angelique Kerber also won in straight sets, while top seed and recent French Open semi-finalist Daria Kasatkina reached the quarter-finals with a 6-1 3-6 6-1 win over Germany's Jule Niemeier.
Kasatkina will be absent from Wimbledon due to the ban on Russian players.
Cornet, the 12 seed, was nearly perfect in the first set, winning 86 per cent of her service points (12-14) and 80 per cent of her return points (12-15).
15 seed Amanda Anisimova also made it through, and with an identical scoreline, defeating American compatriot Sachia Vickery 6-0 7-5.
China's Shuai Zhang is the 16 seed, and she also only needed two sets to see off unseeded opponent Francesca Di Lorenzo 6-2 6-4.
Hungary's Anna Bondar earned a second-round matchup against world number three Paula Badosa after defeating the Netherlands' Arianne Hartono 6-1 6-4.
Italian Jasmine Paolini will meet six seed and world number 13 Jessica Pegula in the second round after beating Romania's Gabriela Lee 6-2 6-3.
Meanwhile, in Bogota at the Copa Colsanitas, Brazilian qualifier Laura Pigossi defeated five seed Harmony Tan 6-4 6-3.
Top seed and world number 33 Camila Osorio will kick off her tournament on Tuesday against Ylena In-Albon.
Rafael Nadal's shock defeat to Cameron Norrie – coupled with Katie Swan's win against Nuria Parrizas-Diaz – put Spain 2-0 down in the best-of-five tie ahead of Sunday's action.
World number 13 Paula Badosa put them back into contention with a hard-fought 6-7 (6-8) 7-6 (7-5) 6-1 win against Harriet Dart, but Evans gave Britain an unassailable lead by battling past Ramos-Vinolas, recovering from a dismal second set.
Having topped Group D, Britain will face the Croup C winners – the United States, Germany or the Czech Republic – for a semi-final place on Wednesday.
Meanwhile, Hubert Hurkacz doubled up to help Poland past Kazakhstan, teaming up with Iga Swiatek in the mixed doubles after beating Alexander Bublik.
Hurkacz beat Bublik 7-6 (8-6) 4-6 6-3 in just over two hours before Magda Linette overcame Zhibek Kulambayeva 6-2 6-1.
With Poland's first win in the competition secure, world number one Swiatek helped Hurkacz put the icing on the cake with a 6-3 6-4 victory against Kulambayeva and Grigoriy Lomakin.
The Czech Republic also enjoyed a fruitful day as two-time Wimbledon champion Petra Kvitova downed Laura Siegemund in straight sets to seal the team's win against Germany, but Casper Ruud was less fortunate, with Norway losing their tie against Brazil despite his success against Thiago Monteiro.
Badosa – the highest-ranked Spanish player in the women's draw – needed just 71 minutes to wrap up a 6-3 6-0 win over last year's Roland Garros runner-up, thrilling a supportive home crowd at the Manolo Santana Stadium.
Badosa edged a competitive start on the clay, with each of the first five games featuring break points, before the 25-year-old forced a series of errors from Gauff to take the opener.
The second set was far more straightforward, the error-prone Gauff rounding out the match by losing eight consecutive games to miss out on a spot in the last 16.
Gauff was not the only seed to be humbled on Saturday, with Caroline Garcia falling to a 7-6 (7-2) 6-3 loss in her meeting with Egypt's Mayar Sherif.
Sabalenka – the highest-ranked player in action on Saturday – enjoyed a more productive outing, however.
She saw off a spirited challenge from Colombia's Camila Osorio to clinch a 6-4 7-5 victory, teeing up a last-16 meeting with surprise package Andreeva.
Playing on her 16th birthday, wildcard Andreeva celebrated in style with a 6-3 6-3 win over Poland's Magda Linette, continuing a dream run which has also seen the Russian eliminate Leylah Fernandez and Beatriz Haddad Maia.
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.
Second seed Badosa had no answer to the brilliance of Halep in her homeland as the relentless Romanian won 6-3 6-1 at the Caja Magica.
Unseeded two-time grand slam champion Halep took just an hour and 17 minutes to eliminate Badosa, breaking three times in the first set and twice in the second.
Halep, in a new era with Patrick Mouratoglou in her corner, won 84 per cent of points when she landed her first serve in, staying in the hunt to win this tournament for a third time with the French Open on the horizon.
The former world number one will face Coco Gauff for a place in the quarter-finals following the American's 6-1 2-6 6-4 late-night defeat of Yulia Putintseva.
Gauff, the 14th seed, racked up 10 double faults and was pushed all the way by Putintseva, but served out the match after securing a third break in a tight final set.
Ons Jabeur earlier advanced into the third round at the expense of Varvara Gracheva, recovering from a second-set bagel to win 7-5 0-6 6-4.
Jabeur faces a meeting with Belinda Bencic after the Swiss dispatched Karolina Muchova 6-3 4-6 7-5.
Victoria Azarenka came from a set down to beat Tamara Zidansek 3-6 6-1 6-3 to set up a meeting with Amanda Anisimova, who also had to come from behind to dispatch Petra Martic 3-6 6-3 6-2.
Ekaterina Alexandrova and Marie Bouzkova also progressed in the Spanish capital.
Unseeded 29-year-old American Rogers has knocked off top seed Maria Sakkari along with Amanda Anisimova and 2019 US Open winner Bianca Andreescu on her way to the decider.
Rogers is also yet to drop a set, maintaining that run against the higher-ranked Kudermetova for a 6-3 6-4 victory in one hour and 20 minutes.
The triumph marks Rogers' biggest final in her career and her first on tour in six years.
Rogers, who trailed 2-0 in the second set, broke Kudermetova's serve with her second match point to clinch victory.
Second seed Badosa was bundled out by Kasatkina 6-2 6-4 in 46 minutes in the other semi-final on Saturday.
Badosa did not appear 100 per cent physically throughout the match and Kasatkina capitalised to secure back-to-back finals in San Jose.
The Spaniard had three break points in the decisive game before Kasatkina converted her first match point.
Kaia Kanepi and Liudmila Samsonova both powered their way into the Citi Open final with comfortable victories on Saturday.
Sixth seed Kanepi ruthlessly swept aside Australian Daria Saville 6-3 6-1 in one hour and 13 minutes, moving her closer to her fifth career title. The 37-year-old Estonian blasted 18 winners for the match.
World number 60 Samsonova proved too good for China's Wang Xiyu, winning 6-1 6-1 in one hour and seven minutes. Samsonova's big hitting was a key feature behind her win with four aces and 17 winners.
The Spaniard was forced to retire when trailing 6-2 1-0 to Marta Kostyuk after her troublesome stress fracture flared up and she revealed she will not be able to play the mixed doubles with her boyfriend Stefanos Tsitsipas.
To add insult to injury, news of her fitness struggles on Court 18 had clearly not reached an international reporter, who opened her post-match press conference by congratulating her on her victory, prompting a toe-curling exchange.
Responding to the opening comment, Badosa simply replied: “I lost.”
The reporter did not acknowledge her answer and asked her to talk about her fitness and confidence level, to which she replied: “For your information, I just lost. I didn’t win. So, yeah.”
The moderator then again informed the journalist Badosa had lost, which was received by surprise.
Once the result had been established in the room, Badosa went on to say that she will be withdrawing from the mixed doubles due to the problem, robbing fans of a on-court love story.
Asked whether she would be able to compete: “No, no, I won’t be able. The injury is the same as I have been struggling the past weeks.
“It’s the stress fracture. I tried my best to try to play here, but yesterday when I woke up I already, after my first-round match, felt it again. It’s a little bit worse.
“So I will need a few days off and talk to my team and see what I do in the next days and the next weeks.
“The first match I was pretty happy because I felt OK. After the match I spoke with my team, and I was, like, it wasn’t very bad.
“But yesterday, as I said when I woke up, I was worse. Today was worse. I wanted to give it a try in the match, but I think the smartest thing was to stop.”
Kostyuk will play 25th seed Maddison Keys after the American beat Viktorija Golubic 7-5 6-3 while two-time champion Petra Kvitova beat Aliaksandra Sasnovich 6-2 6-2 to reach the third round.
Sixth seed Kudermetova showed great defiance to defeat American Collins 4-6 7-6 (7-5) 6-1 on Thursday.
Kudermetova fended off five match points when serving to stay in the tournament at 6-5 down in the second set and duly forced a tie-break.
Collins, runner-up to Ash Barty in the Australian Open final last year, took a 3-0 lead in the breaker, but back came her Russian opponent to level the match.
The world number nine dominated the deciding set to seal a meeting with Bencic in the last four.
Eighth seed Bencic got the better of WTA Finals champion Garcia 6-2 3-6 6-4.
Garcia broke straight back after going 3-1 down in the final set, but Bencic broke for the fourth time in the match to go through.
Paula Badosa and Daria Kasatkina will contest the other semi-final after beating Beatriz Haddad Maia and Petra Kvitova respectively.
Elisabetta Cocciaretto saved two match points as she came from a set down to beat Bernarda Pera 5-7 7-6 (10-8) 6-4 in the quarter-finals of the Hobart International.
The 21-year-old Italian will now face 2020 Australian Open champion Sofia Kenin, who also stormed back to defeat Anhelina Kalinina 4-6 6-3 6-1.
Lauren Davis and Anna Blinkova will do battle in the other semi-final following wins over Wang Xinyu and Yulia Putintseva respectively.
Jabeur, a finalist at both Wimbledon and the US Open this past season, received a bye through to the second round thanks to her status as the second seed, and she had to save three break points in the opening game of the match against Tsurenko.
After repelling the early push, Jabeur rattled off the first five games to take a commanding lead, and she secured another break to begin the second frame.
Meanwhile, with half of the field still completing their first-round matchups, 12th seed Paula Badosa proved too strong for Egypt's Mayar Sherif in a comfortable 6-3 6-1 victory.
Spain's Badosa will play Canada's Leylah Fernandez in the second round after the promising 20-year-old took just 72 minutes to dispatch Russia's Evgeniya Rodina 6-3 6-2.
Rodina was the only loss from the four Russians in action on Tuesday, with Anna Kalinskaya defeating Alize Cornet 7-6 (7-4) 4-6 6-2, 19-year-old Diana Shnaider eliminating Alycia Parks 6-4 6-3, and Varvara Gracheva prevailing 7-6 (7-3) 6-2 against Anna-Lena Friedsam.
Bernarda Pera advanced past Clare Liu 6-4 6-7 (1-7) 6-3 in one of the all-American showdowns, while ninth seed Madison Keys beat Emma Navarro 6-4 6-3 and Shelby Rogers took out Danielle Collins 6-7 (2-7) 6-4 6-1 in the others.
Sofia Kenin, the 2020 Australian Open champion, handled the challenge of Aliaksandra Sasnovich 6-1 6-7 (5-7) 6-1, and two-time Australian Open champion Victoria Azarenka came back to defeat Sloane Stephens 3-6 6-3 6-2.
The American world number three triumphed 6-2 6-0 in 65 minutes, winning the second set to love in 27 minutes.
Blinkova, who is ranked 63rd in the world, was no match for Pegula, who won 71 per cent on first serve and 65 per cent on her second. Pegula also generated 10 break points, winning 71 per cent on the Russian's second serve.
The American will take on Romanian 15th seed Irina-Camelia Begu in the round of 16, after she toppled resurgent 2020 Australian Open winner Sofia Kenin 6-1 6-4.
Defending champion and fourth seed Belinda Bencic triumphed in the evening session, breezing past Canada's Katherine Sebov 6-0 6-3 in 62 minutes.
Bencic will meet Shelby Rogers in the third round with the American edging countrywoman Caty McNally 6-7 (4-7) 7-5 6-1.
Ninth seed Madison Keys beat Hailey Baptiste 6-1 6-2, setting up a third-round clash with eighth seed Magda Linette who got past Varvara Gracheva 6-7 (3-7) 7-5 6-4.
Third seed Daria Kasatkina defeated Madison Brengle 6-2 6-1, progressing to face 38th ranked American Bernarda Para who beat Cristina Bucsa 6-3 6-4.
Spaniard Paula Badosa won 7-5 7-6 (8-6) over 2021 US Open runner-up Leylah Fernandez and will face Diana Shnaider who upset fifth seed Veronika Kudermetova 6-4 6-3.
Eugenie Bouchard's campaign at the Copa Colsanitas was halted in the second round with a 6-0 6-7 (7-9) 6-4 loss to fourth seed Kamilla Rakhimova.
World number six Pegula was made to wait for victory after a lengthy rain delay, eventually triumphing 6-2 3-6 6-3 on Sunday.
Sabalenka, the world number three, awaits in the showpiece after clinching a straight-sets victory over Iga Swiatek.
The 30-year-old Pegula raced out the blocks, breaking twice to snatch a 4-0 lead, despite requiring three break points to deal the second blow to Badosa.
Pegula did not look back from there, wrapping up the opener in 38 minutes before the match was paused with the score level midway through the second set.
Badosa utilised that prolonged stoppage to bounce back, taking both break chances to send the semi-final to a decider.
Yet Pegula held her nerve, staving off four break points to hold out for a 2-1 third-set lead before Badosa faltered on her own serve to fall to defeat in just under two hours.
Data Debrief: Pegula matches career-high
Straight off the back of her Canadian Open triumph, Pegula is in red-hot form heading into the final against Sabalenka, aiming for back-to-back WTA 1000 event triumphs.
The six-time major quarter-finalist has now won her last nine matches across WTA Tour outings, matching her previous career-best streak. Pegula is the sixth player in the Open Era to reach the finals at the Canadian and Cincinnati Open in a calendar year after Rosie Casals, Evonne Goolagong, Na Li, Serena Williams and Simona Halep.
Badosa continues to wait for her maiden victory over Pegula, while the Spaniard is also without a top-10 win on the hard courts since beating Barbora Krejcikova two years ago in Sydney.
