--- title: "Kostyuk Loses to Gauff at WTA Finals 2026: Seven Consecutive Losses and Career Record Streak" description: "Marta Kostyuk lost to Coco Gauff in her final group-stage match at the WTA Finals 2026 after failing to convert three set points. This marks the Ukrainian's seventh consecutive defeat — a career record." date: 2026-11-13T05:54:10.899Z lang: en url: https://xab.info/en/posts/kostyuk-loses-to-gauff-wta-finals-2026 tags: [tennis, wta-finals, marta-kostyuk, coco-gauff, elina-svitolina] author: "Dmitriy Shatolov" publisher: "XAB.info" --- # Kostyuk Loses to Gauff at WTA Finals 2026: Seven Consecutive Losses and Career Record Streak ![Ukrainian tennis player Marta Kostyuk focused while holding a tennis racket on the court.](https://xab.info/media/2026/11/13/kostyuk-proigrala-goff-itogoviy-turnir-wta-2026/kostyuk-proigrala-goff-itogoviy-turnir-wta-2026-1.webp) ## Key Points - Kostyuk lost to Gauff in straight sets in the WTA Finals 2026 group-stage finale, failing to convert three set points in the second set. - The defeat became the Ukrainian's seventh consecutive loss — the longest slump of her career; her last win was in the US Open Round of 32. - The 2026 season was Kostyuk's most successful: Roland Garros and Wimbledon semifinals, and a WTA 1000 title in Madrid. - Elina Svitolina retains semifinal hopes and will play Aryna Sabalenka on November 13 in the second match slot. Ukrainian tennis player Marta Kostyuk concluded her performance at the WTA Finals 2026 with a defeat in her final group-stage match. She faced American Coco Gauff, and the match ended in straight sets. The turning point of the encounter was three missed set points by Kostyuk in the second set, after which the Ukrainian lost six games in a row. The match lasted 1 hour and 33 minutes, marking Marta's third defeat at this tournament and officially closing her path to the semifinals. ### Match Progression: From Surge to Collapse In the first set, Coco Gauff quickly seized the initiative and took a 5:2 lead. Following this, Kostyuk took a medical timeout due to issues with her right wrist. Returning to the court, the Ukrainian narrowed the gap, but the American maintained her advantage to take the set. In the second set, control over the game shifted to Kostyuk: she led 3:0, and later medical assistance was needed by Gauff herself, who experienced lower back and hip problems. Upon returning, Gauff won only one game, after which Kostyuk brought the score to 5:1 and earned three set points on her opponent's serve—failing to convert any of them. ### Statistics Did Not Reflect the Outcome In several key metrics, Kostyuk was not inferior to her opponent. The Ukrainian committed five double faults compared to nine by Gauff and had a higher first-serve percentage at 62% against 59%. In unforced errors, the players were virtually tied: 28 for Marta and 27 for the American. Thus, the defeat was caused not by an overall advantage in play, but specifically by unconverted opportunities on the opponent's serve and the subsequent sequence of six lost games, during which Gauff secured three breaks. ### Seven Losses in a Row — A Career Record The defeat against Gauff marked Kostyuk's seventh consecutive loss, representing the longest losing streak of her professional career. The Ukrainian had to retire in one of those matches due to injury in Ningbo, China. Her last victory came in the Round of 32 at the US Open. At the WTA Finals itself, this is Marta's third loss: earlier she fell to Czech Linda Noskova and American Jessica Pegula, with both matches also ending in straight sets, prematurely ending her semifinal chances. ### The Most Successful Season in Career Despite the concluding losing streak, the 2026 season has been Kostyuk's most productive on the women's tour. The Ukrainian reached the semifinals of two Grand Slam tournaments—Roland Garros and Wimbledon—and also won the WTA 1000 event in Madrid. These achievements define the overall context of her performance in the outgoing season. ### Svitolina Keeps Semifinal Hopes Alive Unlike Kostyuk, another Ukrainian representative, Elina Svitolina, keeps her chances of reaching the WTA Finals semifinals alive. To achieve this, she needs to defeat neutral athlete Aryna Sabalenka in her final group-stage match. Prior to this, Svitolina earned an important comeback victory over Czech Karolina Muchova, rebounding after losing the first set. The Svitolina vs. Sabalenka match will take place on Friday, November 13, as the second match of the session. ## Fact-Check & Sources - [Потратила три сетбола: Костюк проиграла Гофф и окончательно завершила сезон](https://sport.rbc.ua/ukr/tennis/zmarnuvala-tri-setboli-kostyuk-prograla-goff-1794548534.html) - Primary source; contains match progress, statistics, losing streak, and context regarding Svitolina. Data used as the basis without changes. ## FAQ ### By what set score did Kostyuk lose to Gauff? The match ended in straight sets in favor of Coco Gauff. In the second set, Kostyuk led 5:1 and held three set points, but converted none and lost six games in a row. ### Why was the match interrupted by medical timeouts? Kostyuk took a timeout due to right wrist issues in the first set, while in the second set Gauff required medical attention for lower back and hip problems. ### Does Ukraine still have chances for the WTA Finals semifinals? Yes. Elina Svitolina keeps her chances alive and will play Aryna Sabalenka on November 13 in the second match slot; she needs a win to advance to the semifinals.