Marta Kostyuk knocked out Iga Świątek and opened a new chapter of Roland-Garros
Marta Kostyuk achieved one of the most striking results of Roland-Garros 2026 so far. The Ukrainian tennis player defeated Iga Świątek in the round of 16 of the women’s tournament 7:5, 6:1, thereby eliminating from the competition a player who for years in Paris had been synonymous with stability, dominance and title ambition. According to the official WTA draw, Kostyuk secured a place in the quarterfinals in a clash between the fifteenth and third seeds, where another Ukrainian challenge awaits her against Elina Svitolina. The result resonated especially strongly because Świątek is a four-time Roland-Garros champion, with titles won in 2020, 2022, 2023 and 2024, which is also confirmed by data from the tournament’s official profile.
The match was played on May 31, 2026, in Paris, on the clay courts of the Roland-Garros complex, a tournament that, according to the WTA calendar, is played from May 24 to June 7. At a moment when the women’s draw had already been marked by the elimination of defending champion Coco Gauff, Świątek’s defeat further changed the picture of the fight for the trophy. Hina reported that Kostyuk triumphed in one hour and 39 minutes, and the official WTA draw confirmed the set score of 7:5, 6:1. For Kostyuk, it was her first appearance in the Roland-Garros quarterfinals and one of the greatest individual triumphs of her career.
This outcome was not only surprising because of the name of the defeated player, but also because of the way the match moved in one direction after a very tense first set. In Paris, Świątek had built a reputation as a player who, even on days of weaker play, often finds a way to reverse the rhythm, pressure her opponent and impose her physical and tactical level. This time, however, Kostyuk did not allow the match to turn into another Parisian escape by the Polish player from danger. After winning the first set in the closing stages, the Ukrainian tennis player took control of the rallies, service games and emotional tone of the encounter.
The first set brought tension, the second complete control by Kostyuk
According to beIN Sports’ report, the middle of the first set was marked by a series of breaks and instability on both sides. The players exchanged the advantage several times, while Świątek tried to build rhythm through deep returns and pressure on her opponent’s second serve. In those moments, Kostyuk showed an important difference compared with some earlier matches against the biggest names: she did not retreat behind the baseline, nor did she try merely to survive the points. Instead, she chose moments to step into the court, used variations in her shots and tried to force Świątek to play from uncomfortable positions.
The key moment of the first set came in the closing stages, when Kostyuk managed to regain calm after a period in which both players had been losing serve. The third break in the set was decisive for the Ukrainian player, who then turned the advantage into 7:5. Such a development also carried psychological weight: Świątek entered the second set needing to immediately re-establish control, while Kostyuk, for the first time in the match, had confirmation that her plan was bringing not only parity, but also a result.
The second set began in a way that, for a moment, suggested a possible response from the former dominant ruler of the Paris clay. Świątek immediately broke Kostyuk’s serve, but that break did not trigger a comeback. According to beIN Sports’ report, the Polish player then lost momentum, while Kostyuk responded with a run of games and moved into a 5:1 lead. The Ukrainian then served out the victory at the first opportunity, ending the match without additional drama and without any sign that Świątek could return to the match.
Serve and pressure were the biggest problems for Świątek
The Guardian emphasized in its report from Paris that Świątek had serious problems with her serve at the end of the first set and during the second. According to that report, the third seed lost six consecutive service games by the end of the encounter, and from 5:4 and 15:15 in the first set won only one of the final eleven games. Such a drop had rarely been seen in her Paris appearances, especially given that Roland-Garros had long been the tournament where Świątek managed to hide or compensate for occasional fluctuations.
After the match, according to The Guardian’s report, Świątek spoke about difficulties in coping with stress and about the feeling that, in key moments, the ball was not behaving the way she wanted. She particularly emphasized that under pressure her serve can fall apart, followed by her movement and groundstrokes. Such an analysis does not diminish Kostyuk’s victory, but it explains why the second set looked surprisingly one-sided. Kostyuk recognized the weakness, continued to apply pressure with returns and did not allow her opponent time to stabilize.
The defeat was especially unpleasant for Świątek because it happened on her 25th birthday and at a tournament she entered with a clear ambition to return to the top in Paris. Official Roland-Garros data state that since 2020 she has won six Grand Slam titles, including four in Paris. Her connection with this tournament therefore goes beyond ordinary statistics: Roland-Garros was the place of her greatest security, the place where she built the status of one of the most successful players of her generation. Precisely because of that, defeat in the round of 16 carries weight greater than a standard elimination of a highly ranked player.
Kostyuk confirmed the best clay-court form of her career
Kostyuk arrived in Paris in form that, even before the match against Świątek, demanded serious respect. The official Roland-Garros website wrote after her opening match that the Ukrainian player had continued a long run of success on clay with her first-round victory. Hina reported that after the win over Świątek she remained unbeaten on clay in 2026, while beIN Sports stated that she had reached her 16th consecutive victory on clay. That fact places the result in a broader context: although victory over the four-time Roland-Garros champion remains a sensation, Kostyuk did not enter the match as a player without form or without previous major results.
According to reports by Hina and The Guardian, Kostyuk had earlier in the season won tournaments in Rouen and Madrid, with the Madrid title carrying particular weight because it was a major WTA 1000 success. Such a streak shows that her progress is not limited to one week or one inspired match. In Paris, she continued a trend of play in which she combines defense, speed, changes of rhythm and aggressive movement into the court when the opportunity appears. Against Świątek, it was precisely that combination that proved decisive, because the Ukrainian withstood periods of pressure and then punished every drop in her opponent’s precision.
For Kostyuk, this is the second Grand Slam quarterfinal of her career, after previously reaching that stage at the Australian Open in 2024, according to The Guardian’s report. In Paris, however, she reached the last eight for the first time, which has special significance because of the demands of the clay surface and the fact that on the opposite side of the net stood one of the best players in the history of this tournament. In Kostyuk’s official profile, the WTA states that the Ukrainian is currently the 15th-ranked player in the world, and that ranking is now accompanied by a result that further confirms her as one of the most dangerous players of the season on clay.
A Ukrainian duel in the quarterfinals and a more open draw
The official WTA draw shows that Kostyuk will play Elina Svitolina in the quarterfinals. The Guardian reported that Svitolina defeated Belinda Benčić 4:6, 6:4, 6:0 in the round of 16, securing a Ukrainian duel for a place in the Roland-Garros semifinals. Such a development gives additional weight to the section of the draw containing Kostyuk and Svitolina, because both enter the quarterfinals with strong momentum in results and a clear story about the continuity of Ukrainian tennis in the closing stages of a major tournament.
Kostyuk’s victory over Świątek fitted into a broader series of surprises at this year’s Roland-Garros. beIN Sports reported that Coco Gauff, the defending champion in women’s singles, was eliminated on Saturday, while in the men’s part of the tournament the campaigns of some of the biggest names, including Novak Đoković and Jannik Sinner, had ended earlier. Hina also emphasized that with this defeat Świątek joined a series of big names who had left the Paris tournament in recent days. In such circumstances, the draw no longer has the same hierarchy that had been expected before the start of the competition.
For top seed Aryna Sabalenka, that means a different context in the fight for the title, but not necessarily an easier path. Świątek’s elimination removes a player with an exceptional Parisian reputation, but the remaining contenders arrive with their own streaks, stylistic advantages and growing confidence. Among them, Kostyuk has now received the loudest confirmation, because she not only reached the quarterfinals, but did so against a player whose victories in Paris had for years been a measure of quality.
A result that changes perception, but does not require exaggeration
Marta Kostyuk’s 7:5, 6:1 victory over Iga Świątek can be described as a sensation, but not as a coincidence. The numbers from the match, the current streak on clay and previous titles in the season show that the Ukrainian tennis player came to Paris ready for a result that goes beyond the role of a dangerous seed from the background. Against Świątek, she showed tactical discipline, physical stability and enough courage not to abandon active play in the most important moments. In a sport in which major upsets are often explained exclusively by a poor day from the favorite, this match demands a broader picture: Świątek had a bad day, but Kostyuk knew how to turn it into a victory.
For Świątek, the defeat opens questions about the continuation of the season and about how to rebuild security in the game that had brought her the biggest titles. According to The Guardian, she arrived in Paris with changes in her work and with the intention of strengthening the foundations of her game, but the match against Kostyuk showed that the process was not complete. For Kostyuk, on the other hand, this is a victory that raises expectations and changes the way opponents will perceive her for the rest of the tournament. She enters the quarterfinals not only as a player who defeated a four-time champion, but also as a tennis player who at this moment has one of the most convincing streaks on clay on the WTA Tour.
Roland-Garros is often a tournament where reputation means a great deal, but it cannot replace daily performance. On Sunday, May 31, 2026, Kostyuk played a match on the Paris clay that combined result, form and mental maturity. In doing so, she eliminated one of the biggest favorites and opened the closing stages of the women’s tournament in which there are no longer any safe assumptions. The next test against Svitolina will show whether she can turn a great triumph into an even deeper run in the tournament, but the victory over Świątek is already strong enough to remain one of the key moments of Roland-Garros 2026.
Sources:
- WTA – official Roland-Garros 2026 draw, result of the Kostyuk – Świątek match and quarterfinal schedule (link)
- Roland-Garros – official profile of Iga Świątek and overview of her Grand Slam titles (link)
- Roland-Garros – official report on Marta Kostyuk’s start to the tournament and her winning streak on clay (link)
- WTA – official profile of Marta Kostyuk with ranking and biographical data (link)
- beIN Sports – report on Marta Kostyuk’s victory over Iga Świątek and the course of the match (link)
- The Guardian – report from Paris on Iga Świątek’s defeat, reactions and Marta Kostyuk’s next opponent (link)
- Hina / Slobodna Dalmacija – Croatian-language report on the result, match duration and draw context (link)