Rybakina’s No. 1 Chase Ends as Pegula Edges Anisimova | WTA Cincinnati Open 2026

Cincinnati Open 2026 Roundup | Day 8

The 2026 Cincinnati Open moved into the quarterfinals on Thursday, August 20, with two very different endings to two compelling tournament stories.

Elena Rybakina’s opportunity to become World No. 1 ended when a left ankle injury forced her to retire against Iga Swiatek, while Jessica Pegula survived a three-set battle against Amanda Anisimova to reach the semifinals.

For Anisimova, defeat also offers a moment to look beyond Cincinnati — back to the period when she stepped away from tennis entirely, and at how far she has travelled since returning.

Main Highlight: Rybakina’s No. 1 Dream Ends in Painful Fashion

For Elena Rybakina, Cincinnati had become about considerably more than another WTA 1000 title.

After Sara Bejlek eliminated World No. 1 Aryna Sabalenka in the Round of 16, the door opened.

Rybakina entered her quarterfinal against Iga Swiatek with an opportunity to overtake Sabalenka and become World No. 1 for the first time.

She needed to reach the Cincinnati final.

Instead, the chase ended after only five games.

Rybakina Retires Against Swiatek

Swiatek led 4-1 in the opening set when Rybakina began experiencing trouble with her left ankle.

The Kazakh called for the trainer before attempting to continue.

She played only briefly before deciding she could not go on.

The retirement sent Swiatek into the Cincinnati semifinals and brought an abrupt end to Rybakina’s tournament — and her immediate opportunity to reach No. 1.

It was an unfortunate ending to what had been another excellent North American run.

Rybakina reached the final in Toronto before advancing to the Cincinnati quarterfinals without dropping a set.

Her Cincinnati victories included Taylor Townsend, Magdalena Frech and Diana Shnaider.

But the ranking chase will have to wait.

More importantly, attention now turns toward Rybakina’s fitness with the US Open beginning August 30.

How Close Was Rybakina to No. 1?

Very close.

Sabalenka’s defeat to Bejlek dramatically changed the ranking equation.

With the World No. 1 unable to earn any more Cincinnati points, Rybakina controlled what happened next.

Reaching the Cincinnati final would have been enough for Rybakina to overtake Sabalenka and become World No. 1 for the first time.

That meant only two more victories stood between her and the top ranking when she entered the quarterfinal.

Swiatek was the first obstacle.

The injury prevented us from discovering whether Rybakina could clear it.

Sabalenka therefore remains No. 1, while Rybakina leaves Cincinnati knowing she has moved close enough for the battle to continue beyond this tournament.

Pegula Survives Anisimova Thriller

The other completed women’s quarterfinal could hardly have been more different.

Jessica Pegula defeated Amanda Anisimova 6-4, 2-6, 7-6(4) in a match that went all the way to a deciding-set tiebreak.

Pegula took the opening set before Anisimova responded emphatically, winning the second 6-2.

The deciding set became a battle.

Pegula moved ahead 5-3 but was unable to close the match immediately as Anisimova fought back.

Eventually, the quarterfinal reached a tiebreak.

This time Pegula found the separation she needed, taking it 7-4 to reach the semifinals.

The victory also continued a remarkable head-to-head record:

Pegula is now 6-0 against Anisimova.

Anisimova’s Cincinnati Run Ends — But Her Bigger Story Continues

Anisimova’s defeat deserves more context than simply another quarterfinal result.

In May 2023, at only 21 years old, Anisimova stepped away from professional tennis indefinitely.

She publicly explained that she had been struggling with burnout and her mental health since the summer of 2022.

Tennis had reached a point where being at tournaments had become unbearable.

So she stopped.

During her time away, Anisimova deliberately built a life outside tennis.

She studied for a semester at university, spent time with friends, travelled and developed her interest in painting. Her artwork became more than a hobby, with sales helping support charitable causes.

She eventually returned to training and resumed competition in January 2024.

The objective wasn’t simply to restore a ranking.

It was to find a healthier relationship with the sport.

From Walking Away to the Top of the Game

That makes the player we are watching today considerably more interesting.

The teenager who reached the Roland Garros semifinals at 17 had once appeared destined to move rapidly toward the top of women’s tennis.

Her path turned out to be anything but straightforward.

Yet several years after deciding she needed to walk away, Anisimova has rebuilt herself into one of the leading players on tour.

And Cincinnati provided another example.

She defeated Zeynep Sonmez in straight sets, survived a difficult three-set encounter against Alexandra Eala, and then overwhelmed Linda Noskova 6-1, 6-4 to reach the quarterfinals.

Against Pegula, she came within a deciding-set tiebreak of reaching another WTA 1000 semifinal.

She lost the match.

But viewed against where she was in 2023, that score tells only a small part of the story.

Sometimes stepping away isn’t the end of a career.

Sometimes it’s what allows the career to continue.

Pegula vs. Swiatek Is Set

Pegula’s victory and Rybakina’s retirement create the first confirmed Cincinnati semifinal:

Jessica Pegula vs. Iga Swiatek

Pegula has been remarkably consistent throughout the tournament, defeating Simona Waltert, Emma Navarro, Sorana Cirstea and Anisimova.

Swiatek’s route has included victories over Emiliana Arango, Maria Sakkari and Diane Parry before Rybakina’s retirement.

The defending champion now stands two victories away from retaining her Cincinnati title.

Pegula will try to stop her.

Bejlek’s Story Continues on Day 9

The other half of the quarterfinal draw remains unfinished.

And one of Cincinnati’s biggest stories is still alive.

Sara Bejlek faces Madison Keys after a remarkable run through Karolina Pliskova, Barbora Krejcikova, Ekaterina Alexandrova and World No. 1 Aryna Sabalenka.

Bejlek’s victory over Sabalenka gave her both her first Top-10 victory and first WTA 1000 quarterfinal.

Now she faces another major champion.

The final quarterfinal features Coco Gauff against Marta Kostyuk.

Those two matches will determine who joins Pegula and Swiatek in the final four.

Doubles Reaches the Semifinals

The women’s doubles tournament also completed its quarterfinal stage on Thursday.

With the field reduced to four teams, Friday’s doubles semifinals will determine who plays for the Cincinnati title.

The doubles championship will be decided Saturday, one day before the women’s singles final.

Two Cincinnati Stories, Two Very Different Endings

Day 8 demonstrated why tournament results alone rarely tell the complete story.

For Rybakina, Cincinnati offered the possibility of reaching the very top of women’s tennis.

She came within two victories of World No. 1.

Then her body stopped her.

For Anisimova, Cincinnati ended with a narrow defeat.

But several years after reaching the point where she needed to leave professional tennis altogether, she is again competing deep into the biggest tournaments on the WTA Tour.

One player leaves Cincinnati wondering what might have happened without an injury.

The other leaves after another reminder of how far she has already come.

And Cincinnati still has more stories to tell.

More from the WTA Cincinnati 2026 Roundup

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