The 32-year-old veteran Jessica Pegula has been in dominant form, cruising through her matches with relentless baseline aggression.
She secured straight-sets victories over Elena Gabriela Ruse, Sofia Kenin, and Sorana Cirstea, dropping her only set of the tournament in a tight three-set battle against Leylah Fernandez in the third round.
Pegula’s quarterfinal match sets up a highly anticipated clash against 26th-seeded Emma Navarro.
Pegula holds a strong 4-0 head-to-head advantage over Navarro coming into this match, including a victory just weeks prior at the Cincinnati Open.
Meet the Key Supporters in Jessica Pegula’s Player Box at the 2026 US Open
Pegula’s player box regularly features a highly dedicated core group of coaches, training staff, and family members who provide critical support during her deep tournament runs.
Her primary coaching team, which includes former ATP doubles standout Mark Knowles and co-coach Mark Merklein, alongside her hitting partner Daniel. They are also joined by her fitness trainer John and physiotherapist Seba, who ensure she maintains peak conditioning through grueling matches.
For personal support, her husband, Taylor Gahagen, whom she married in 2021, is a steadfast presence, though he is known to be quite private and intentionally avoids the television cameras.
Additionally, her sister Kelly Pegula is a highly visible fixture at major tournaments like the US Open.
Pegula’s parents are rarely seen in her player box due to a combination of medical recovery and intense personal nerves. Her mother, Kim Pegula, continues to focus on her health and rehabilitation at home following a near-fatal sudden cardiac arrest in 2022 that resulted in a brain injury, expressive aphasia, and memory struggles.
Even before her health crisis, Kim openly admitted she avoided sitting in the box because watching her daughter compete live made her far too anxious, preferring to support her from afar.
Meanwhile, her father, billionaire sports mogul Terry Pegula, has spent the last few years fiercely dedicated to staying by his wife’s side through her medical journey while simultaneously managing their massive sports empire, which includes the Buffalo Bills and Buffalo Sabres.
While Terry has noted that these complex family issues have restricted him to attending only a couple of live matches in recent years, both parents remain Jessica’s fiercest champions, watching every point intently on television from home.
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Jessica Pegula’s Recent Form
The strategic adjustments introduced by Pegula’s coaching team, helmed by Mark Knowles and Mark Merklein, have completely transformed her game, allowing her to play the best tennis of her career.
After joining forces with Pegula, Knowles recognized that elite players often suffer from over-analysis. He immediately focused on streamlining the flow of information she receives during high-stakes moments.
Instead of chasing technical perfection, Knowles shifted her on-court psychology to focus purely on match execution and adapting to match conditions rather than how she “feels” during warm-ups.
A major cornerstone of their tactical revamp has been a technical overhaul of Pegula’s serve. By implementing simple adjustments to her service motion, Knowles and Merklein helped her drastically improve her efficiency, driving her serve games won percentage up to an impressive 80% and keeping her aces-to-double faults ratio at an all-time high.
Furthermore, they recognized that her elite movement is the true engine behind her success, working hard to maximize her physical court coverage. By intentionally convincing her to practice less to prevent burnout, and keeping the team environment relaxed, they have successfully unlocked the free points and mental clarity Pegula needs to target her first Grand Slam title.
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