Updated September 8, 2026
Jessica Pegula and Emma Navarro meet Tuesday in an all-American US Open quarterfinal with a semifinal berth at stake. Pegula enters as the No. 3 seed and has reached this stage in New York for a third consecutive year, while Navarro is back in the quarterfinals after making her breakthrough US Open semifinal run in 2024. Polymarket currently makes Pegula a clear favorite, with her price around 78¢ and Navarro near 23¢.
Why Our Model Sees Value:
“The current price appears to give too little weight to Pegula's 4-0 record in this matchup, including a 7-5, 6-2 win just 3 weeks ago in Cincinnati. Pegula also owns the stronger full-season track record and has shown that her flatter, earlier ball striking can keep Navarro from settling into the longer exchanges she prefers.”
Pegula Holds the Matchup Advantage
The clearest starting point for handicapping this match is a 4-0 head-to-head advantage for Pegula. She beat Navarro 7-6, 6-3 in Miami in 2024, survived a 3-set match in Bad Homburg in 2025, came from behind to win their Beijing quarterfinal later that season, and defeated her 7-5, 6-2 in Cincinnati on August 17.
Recent Success For Pegula
That recent Cincinnati meeting carries extra weight because it came on the same North American hard-court swing and less than a month before this quarterfinal. Navarro remained competitive through the opening set, but Pegula separated once she found her return rhythm. She has now demonstrated several different ways to solve this matchup, from tight first sets to longer 3-set contests.
Recommended Prediction:
Pegula to Win
Current Market Price:
78¢
Model Win Probability:
82.5%
Market-Implied Probability:
78%
Model Edge:
4.5%
Buy Up To:
80¢
Model Trade Confidence:
78/100
Pegula has built one of the strongest records on the women's tour in 2026. Her fourth-round victory over Sorana Cirstea was her 49th win of the season, the highest total on tour at that point, and sent her into an 11th career Grand Slam quarterfinal. She won that match 6-3, 6-4 after previously beating Gabriela Ruse and Sofia Kenin in straight sets and recovering from a poor opening set to defeat Leylah Fernandez 1-6, 6-4, 6-3.
The Fernandez match may actually be one of the more useful indicators here. Pegula did not play well early, yet she adjusted rather than allowing a bad set to become a bad match. That ability to change patterns is particularly valuable against Navarro, whose consistency can expose players who become impatient after several neutral exchanges.
Pegula also entered the US Open after a productive summer. Her recent results include victories over Iga Swiatek, Amanda Anisimova and Navarro before losing to Coco Gauff in Cincinnati.
Navarro's ranking of No. 27 understates how well she has played during this tournament. She defeated No. 7 seed Karolina Muchova 6-3, 7-5 in the third round, then followed it with a 6-4, 6-2 victory against Anna Kalinskaya. The Muchova result was Navarro's third victory against a top-10 opponent this season.
Her path has required more work than Pegula's. Navarro went 3 sets against Lois Boisson in the first round and Caty McNally in the second before producing consecutive straight-set wins over Muchova and Kalinskaya. Those last 2 performances are the main reason it would be dangerous to treat her as an ordinary 23% underdog.
Navarro has also shown that Arthur Ashe Stadium does not bother her. Her 2024 semifinal run established that, and she handled the setting well again against Kalinskaya. This is unlikely to be a match where the occasion itself creates a meaningful edge for either American.
Navarro openly acknowledged before the match that Pegula presents an unusual problem because of how flat she strikes the ball. Pegula takes time away from opponents and redirects pace exceptionally well, particularly off the backhand side. Navarro generally benefits when she can extend points, change direction, and force opponents to hit another quality shot.
The biggest question is whether Navarro can get enough depth on her first few shots to push Pegula farther behind the baseline. If she can, the rallies become more neutral, and Navarro's movement and consistency become larger factors. If Pegula stays close to the baseline and repeatedly catches Navarro's second serve or shorter groundstrokes early, Navarro may struggle to turn defense into attack.
The opening set will be huge in this match. Navarro has been competitive enough against Pegula to create tight stretches, and 3 of their 4 previous meetings included either a tiebreak or a deciding set. Pegula's recent 7-5 opening-set victory in Cincinnati also shows that the difference between them can initially be small.
The longer-term patterns, however, favor Pegula. Once she establishes her preferred court position, her ability to take Navarro's time away becomes difficult to counter.
At a Polymarket price of roughly 78¢, the market already recognizes Pegula as the clear favorite. My projection moves her to 82.5%, leaving a 4.5% model edge. That is enough to make Pegula my preferred prediction, though the advantage becomes considerably less attractive once the price moves beyond 80¢.
