Zeynep Sonmez and Katie Volynets will fight against each other in the 1^st round of the U.S. Open for the 1^st time in their career. They are scheduled to play on Monday at 6:00 pm on Court 6. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Katie Volynets who should win in 3 sets.

As per the initial odds, Katie Volynets is the pick to win this match.
Katie Volynets -> 1.533
Zeynep Sonmez -> 2.5

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Prediction and head to head Zeynep Sonmez vs. Katie Volynets

There is no head to head record between Zeynep Sonmez and Katie Volynets since this will be the first time that they will play each other in the main tour.

Zeynep Sonmez

Ranked no. 79, Zeynep will start her run at the U.S. Open after she played her last match in Monterrey where she lost 3-6 6-2 6-4 to Bouzkova in the 1^st round on the 18^th of August.

Sonmez has a composed 18-19 win-loss record in 2025, 7-9 on hard (See FULL STATS).

Talking about her overall career, Zeynep has an overall 226-149 record. She has a positive 76-46 record on hard.

Previously at the U.S. Open

Previously, her best result was reaching the qualifications in 2024. See her history.

Katie Volynets

Ranked no. 108, the American reached the 1^st round after defeating Sofia Costoulas 6-3 6-4, Amelia Honer 6-2 6-7(4) 1-0 ret. and Jana Fett 5-7 6-2 6-3.

In the qualifications against Fett, Volynets recovered from a 1-set down deficit before winning (5-7 6-2 6-3). During the match Volynets scored 104 points vs Fett’s 91. Katie was exceptionally aggressive to blast 39 winners.

About the serving games, Volynets scored just 1 ace during the entire match and she committed only 2 double faults. Katie Volynets lost the serve 5 times and she saved 6 break points. Furthermore, Volynets put 70% of her first serves in, winning 54% (39/72) of the points behind her 1st serve and 52% (16/31) on the 2nd serve. Volynets broke Fett 8 times after converting 57% of her break points (8/14).

Overall Performance in this tournament

The American started her run at this tournament from the qualifications. In the main draw, she has conceded 1 set in the tournament to win 53% of the points she played.

Katie’s best result of the current season was getting to the final in the Oeiras.

The American has a composed 25-21 win-loss record in 2025, 11-10 on hard (See FULL STATS).

Previously at the U.S. Open

Previously, her best result was reaching the 1^st round in 2019, 2021, 2023 and 2024. See her history.

Tennis Scores – U.S. Open

• Dominik KoepferKoepfer – Marc PolmansPolmans (7-6¹ 6-3) – Stats, scores, rankings
• Lukas RosolRosol – Sebastian OfnerOfner (6-7⁸ 6-3 7-6²) – Stats, scores, rankings
• Alex BoltBolt – Evgeny DonskoyDonskoy (6-3 7-6¹¹) – Stats, scores, rankings
• Mitchell KruegerKrueger – Emilio GomezGomez (6-3 7-6²) – Stats, scores, rankings
• Ruben BemelmansBemelmans – Tatsuma ItoIto (6-7⁴ 6-3 6-4) – Stats, scores, rankings
• Soon-Woo KwonKwon – Evan HoytHoyt (6-0 6-4) – Stats, scores, rankings
• Stefano NapolitanoNapolitano – Liam BroadyBroady (7-6⁵ 6-2) – Stats, scores, rankings
• Brydan KleinKlein – Jan ChoinskiChoinski (2-6 7-5 6-2) – Stats, scores, rankings
• Lukas LackoLacko – Adrian Menendez-MaceirasMenendez-Maceiras (6-3 6-4) – Stats, scores, rankings
• Go SoedaSoeda – Viktor GalovicGalovic (7-6⁴ 7-6⁸) – Stats, scores, rankings
• Marcos GironGiron – Filippo BaldiBaldi (6-1 6-4) – Stats, scores, rankings
• Bjorn FratangeloFratangelo – Ryan PenistonPeniston (7-5 6-4) – Stats, scores, rankings
• Jason Murray KublerMurray Kubler – Oscar OtteOtte (6-4 6-2) – Stats, scores, rankings
• James DuckworthDuckworth – Filip HoranskyHoransky (6-1 6-2) – Stats, scores, rankings
• Yuichi SugitaSugita – Guillermo Garcia-LopezGarcia-Lopez (6-1 7-6⁵) – Stats, scores, rankings
• Paul JubbJubb – Egor GerasimovGerasimov (6-7⁵ 6-3 6-2) – Stats, scores, rankings

Upcoming matches in the draw

• Aryna SabalenkaSabalenka – Rebeka MasarovaMasarova (1-0) – H2H and prediction
• Nuria Parrizas-DiazParrizas-Diaz – (0-1) – H2H and prediction
• Elsa JacquemotJacquemot – Marie BouzkovaBouzkova (0-0) – H2H and prediction
• Rebecca MarinoMarino – Leylah Annie FernandezAnnie Fernandez (1-0) – H2H and prediction
• Elise MertensMertens – (0-0) – H2H and prediction
• Lulu SunSun – Maria Camila Osorio SerranoCamila Osorio Serrano (0-0) – H2H and prediction
• Cristina BucsaBucsa – Claire LiuLiu (0-1) – H2H and prediction
• Elena RybakinaRybakina – (0-0) – H2H and prediction
• Lucia BronzettiBronzetti – (0-0) – H2H and prediction
• Emma RaducanuRaducanu – Ena Shibahara
  Shibahara (1-0) – H2H and prediction
• Mccartney KesslerKessler – Magda LinetteLinette (1-0) – H2H and prediction
• Aliaksandra SasnovichSasnovich – (0-0) – H2H and prediction
• Destanee AiavaAiava – Jasmine PaoliniPaolini (0-0) – H2H and prediction
• Jessica PegulaPegula – Mayar SherifSherif (0-0) – H2H and prediction
• Yulia StarodubtsewaStarodubtsewa – Anna BlinkovaBlinkova (0-0) – H2H and prediction
• Victoria AzarenkaAzarenka – Hina InoueInoue (0-0) – H2H and prediction
• Anastasia PavlyuchenkovaPavlyuchenkova – Dayana YastremskaYastremska (1-0) – H2H and prediction
• Ludmilla SamsonovaSamsonova – Yue YuanYuan (0-0) – H2H and prediction
• Leolia JeanjeanJeanjean – Priscilla HonHon (0-0) – H2H and prediction
• Ann LiLi – Rebecca SramkovaSramkova (1-0) – H2H and prediction
• Shuai ZhangZhang – Belinda BencicBencic (1-0) – H2H and prediction
• Emma NavarroNavarro – Yafan WangWang (0-0) – H2H and prediction
• Jil TeichmannTeichmann – Caty McNallyMcNally (0-0) – H2H and prediction
• Moyuka UchijimaUchijima – Olga DanilovicDanilovic (0-1) – H2H and prediction
• Barbora KrejcikovaKrejcikova – (0-0) – H2H and prediction
• Jelena OstapenkoOstapenko – Xiyu WangWang (2-0) – H2H and prediction
• Taylor TownsendTownsend – (0-0) – H2H and prediction
• Anastasia PotapovaPotapova – Lin ZhuZhu (2-0) – H2H and prediction
• Alycia ParksParks – (0-0) – H2H and prediction
• Madison KeysKeys – Renata ZarazuaZarazua (1-0) – H2H and prediction
• Petra KvitovaKvitova – Diane ParryParry (0-0) – H2H and prediction
• Katie VolynetsVolynets – Zeynep SonmezSonmez (0-0) – H2H and prediction
• Katie BoulterBoulter – Marta KostyukKostyuk (1-0) – H2H and prediction
• Francesca JonesJones – Eva LysLys (0-0) – H2H and prediction
• Sorana CirsteaCirstea – (0-0) – H2H and prediction
• Venus WilliamsWilliams – Karolina MuchovaMuchova (0-1) – H2H and prediction
• Darya KasatkinaKasatkina – Elena Gabriela RuseGabriela Ruse (0-0) – H2H and prediction
• Kamilla RakhimovaRakhimova – Caroline GarciaGarcia (0-2) – H2H and prediction
• Hailey BaptisteBaptiste – Katerina SiniakovaSiniakova (0-0) – H2H and prediction
• Greetje MinnenMinnen – Naomi OsakaOsaka (0-1) – H2H and prediction
• Magdalena FrechFrech – (0-0) – H2H and prediction
• Donna VekicVekic – Jessica Bouzas ManeiroBouzas Maneiro (1-0) – H2H and prediction
• Ajla TomljanovicTomljanovic – Cori GauffGauff (0-1) – H2H and prediction
• Amanda AnisimovaAnisimova – Kimberly BirrellBirrell (0-0) – H2H and prediction
• Danielle Rose CollinsRose Collins – Jaqueline CristianCristian (1-0) – H2H and prediction
• Beatriz Haddad MaiaHaddad Maia – (0-1) – H2H and prediction
• Maria SakkariSakkari – Tatjana MariaMaria (2-2) – H2H and prediction
• Anna BondarBondar – Elina SvitolinaSvitolina (0-2) – H2H and prediction
• Ekaterina AlexandrovaAlexandrova – Anastasija SevastovaSevastova (0-0) – H2H and prediction
• Caroline DolehideDolehide – Xin Yu WangYu Wang (0-1) – H2H and prediction
• Anastasia ZakharovaZakharova – Elina AvanesyanAvanesyan (1-0) – H2H and prediction
• Laura SiegemundSiegemund – (2-0) – H2H and prediction
• Anna KalinskayaKalinskaya – (0-0) – H2H and prediction
• Yulia PutintsevaPutintseva – Elisabetta CocciarettoCocciaretto (2-0) – H2H and prediction
• Suzan LamensLamens – (0-0) – H2H and prediction
• Emiliana ArangoArango – Iga SwiatekSwiatek (0-0) – H2H and prediction