--- title: "Kostyuk Falls Just Short of the WTA 500 Guadalajara Semifinal: Loss to Samsonova and a Missed Ranking Record" description: "Ukrainian tennis player Marta Kostyuk lost to Lyudmila Samsonova in the quarterfinal of the WTA 500 tournament in Guadalajara and missed the chance to climb to a record No. 9 in the rankings. The match score was 6-4, 2-6, 5-7." date: 2026-09-18T06:34:33.000Z lang: en url: https://xab.info/en/posts/kostyuk-samsonova-quarterfinal-wta-500-guadalajara tags: [marta-kostyuk, liudmila-samsonova, wta-500, guadalajara, tennis] publisher: "XAB.info" --- # Kostyuk Falls Just Short of the WTA 500 Guadalajara Semifinal: Loss to Samsonova and a Missed Ranking Record ![Marta Kostyuk in a red Wilson outfit waves to ball kids after her defeat to Samsonova at the WTA 500 Guadalajara](https://xab.info/media/2026/09/19/kostyuk-samsonova-chetvertfinal-wta-500-gvadalahara/kostyuk-samsonova-chetvertfinal-wta-500-gvadalahara-1.webp) ## 🎯 Key Points - Marta Kostyuk lost to Lyudmila Samsonova in the quarterfinal of the WTA 500 in Guadalajara with a score of 6-4, 2-6, 5-7. - The defeat cost the world No. 10 the chance to overtake Iga Swiatek and climb to a record No. 9 in the WTA rankings. - This was the fifth head-to-head meeting between the two players, and Kostyuk has yet to beat Samsonova. - The Ukrainian reached the quarterfinals after her opponent withdrew in the previous round. The run of Ukrainian tennis player Marta Kostyuk at the WTA 500 tournament in Guadalajara, Mexico, has come to an end. In a tense quarterfinal match, the world No. 10 lost to Lyudmila Samsonova, who is competing under a neutral status, and the latter advanced to the semifinals of the tournament. ### Match progression and statistics The match lasted two hours and 30 minutes and was marked by a high number of unforced errors from both sides. In the first set, Kostyuk managed to recover from a slow start and took the set 6-4, but in the second and third sets she failed to hold her advantage and lost them 2-6 and 5-7. In the end, the Ukrainian hit three aces, committed six double faults, and converted four of six break points. More details on the result are provided by [Sport RBC.UA](https://sport.rbc.ua/ukr/tennis/postupilas-rosiyantsi-kostyuk-zupinilas-krok-1789711820.html). ### A missed chance at a record The defeat was especially painful for Kostyuk in terms of the rankings. Had she reached the semifinals, she would have had a real chance to overtake Polish tennis player Iga Swiatek in the updated WTA rankings and, for the first time in her career, climb to No. 9 in the world. Stopping just short of the semifinals deprived the Ukrainian of this opportunity. ### Head-to-head history The match in Guadalajara was the fifth head-to-head meeting between the two players at the professional level. According to the data provided, Kostyuk has yet to beat Samsonova, making this opponent one of the toughest for the Ukrainian on tour. ### How the Ukrainian reached the quarterfinals It is worth recalling that Kostyuk's path to the quarterfinals involved a certain degree of luck: in the previous round she received a "gift" in the form of her opponent's withdrawal and advanced to the quarterfinals without playing. Thus, the road to a potential semifinal and a record ranking was largely eased, but in the decisive match the Ukrainian lacked the necessary consistency. ## 🔍 Fact-Check Verification - [Lost to the Russian: Kostyuk Falls Just Short of the WTA 500 Semifinal in Mexico](https://sport.rbc.ua/ukr/tennis/postupilas-rosiyantsi-kostyuk-zupinilas-krok-1789711820.html) - Первичный источник: счёт 6:4, 2:6, 5:7, статистика, упущенный шанс на 9-ю строчку рейтинга, пятая очная встреча без победы Костюк. - [Kostyuk vs. Samsonova: Prediction for the Guadalajara Quarterfinal, Odds at 2.13](https://www.livesport.ru/tips/tennis/2026/09/17/marta-kostyuk-liudmila-samsonova/) - Предматчевый прогноз (17.09.2026); использован только как подтверждение даты и пары, ставки в статью не включены. - [Who Will Kostyuk Play? WTA 500 Guadalajara Quarterfinal Pairings: Schedule](https://sport.ua/news/908005-s-kem-sygraet-kostyuk-pary-14-finala-wta-500-v-gvadalahare) - Контекст: подтверждает попадание Костюк в четвертьфинал и пару 1/4 финала. - [Guadalajara 2026 Tournament: How Lyudmila Samsonova Played, Her Opponents, Marta Kostyuk, Draw ...](https://www.championat.com/tennis/article-6624596-turnir-v-gvadalahare-2026-kak-sygrala-lyudmila-samsonova-kto-sopernicy-marta-kostyuk-setki-istoriya-vstrech-rezultaty.html) - Подтверждает проведение турнира WTA 500 в Гвадалахаре-2026 и участие обеих теннисисток, сетки и историю встреч. ## ❓ FAQ ### Q: What was the score of Kostyuk's loss to Samsonova in Guadalajara? **A:** The match score was 6-4, 2-6, 5-7 in favor of Lyudmila Samsonova. ### Q: What position in the WTA rankings could Kostyuk have reached if she had made the semifinals? **A:** No. 9: she could have overtaken Iga Swiatek and set a personal career record. ### Q: How many head-to-head matches has Kostyuk played against Samsonova? **A:** This was their fifth meeting, and the Ukrainian has yet to beat her opponent.