Sabalenka starts Wimbledon 2026 in control and beats debutant Kostović on Centre Court in the first round

Sabalenka opened Wimbledon confidently: the top seed stopped debutante Kostović in 64 minutes

Aryna Sabalenka opened Wimbledon 2026 with a victory that, apart from a brief slowdown near the end of the match, confirmed the difference between the top seed and a debutante in the main draw of a Grand Slam. On Monday, June 29, on Centre Court at the All England Club in London, the Belarusian defeated Serbian qualifier Teodora Kostović 6:2, 6:3 and reached the second round of the women's singles without dropping a set. According to Wimbledon's official schedule and results document, the match was the second encounter of the day on the main court, after the duel between Jannik Sinner and Miomir Kecmanović. In its post-match report, the WTA stated that Sabalenka completed the job in 64 minutes, with a performance that from the start was marked by a powerful serve, an aggressive first strike and a clear intention not to allow the debutante longer rallies in which she could find her game. For Kostović, this was her first appearance in the main draw of a Grand Slam tournament, so simply stepping onto Centre Court against the world's highest-ranked player represented the most demanding possible introduction to the Wimbledon stage.

Early pressure and a quick escape in the first set

Sabalenka opened the match the way a favorite of the highest rank most often wants to open a first round: without lengthy probing, with pressure on her opponent's serve and with an effort to make the rhythm of the match determined by her power. In its analysis of the match, the WTA emphasized that the top seed quickly took a 4:0 lead, thereby already in the opening phase depriving Kostović of space for calm adjustment to the atmosphere and the speed of play. The Serbian player managed to win her first game in the fifth game and received a strong reaction from the crowd for it, but that moment did not change the direction of the set. Sabalenka continued to attack the second serve and punish shorter balls, while Kostović, in important points, was too often forced to play from defense. The first set ended 6:2, and according to the WTA report, Sabalenka closed it out in a little more than half an hour, with clear control in almost all key segments.

In such a course of events, the difference in experience came especially to the fore. Sabalenka is, according to the WTA's official profile, the current world No. 1 and a four-time Grand Slam champion, with titles at the Australian Open and the US Open and years of continuity at the biggest tournaments. Kostović arrived in London as a 19-year-old qualifier and the world No. 184, as the WTA stated in its preview and report on the match. Although her entry into the main draw was the result of a successful qualifying week, the transition from the qualifying courts to Centre Court against a player who has for years carried the weight of the highest expectations proved to be a major leap. Sabalenka turned that difference into an advantage already in the first few games, not leaving her opponent enough time to stabilize.

A brief complication in the second set, but no real change of control

The second set brought more resistance from the other side of the net. Kostović played more decisively, tried to enter the point earlier and occasionally showed why, ahead of the draw, she had publicly wished for precisely a clash with Sabalenka. The WTA reported that the Serbian tennis player said after qualifying that she wanted to play against the world No. 1, and her ambitious announcement gained an interesting context when she was indeed drawn precisely against Sabalenka. In the second set, she managed to take advantage of a brief dip in the favorite's concentration, especially at the moment when Sabalenka was serving for the match while leading 5:2. The Guardian reported that Sabalenka then lost serve, but immediately responded with a break in the next game and closed out the duel without any further extension.

That brief complication did not change the overall impression of the match. The WTA announced that Sabalenka finished the encounter with 22 winners, five aces and five games won on her opponent's serve, while Kostović remained at 10 winners and 25 unforced errors. A particularly important statistic was the first-serve performance: according to the WTA, Sabalenka won 83 percent of points after landing her first serve. Such a level of efficiency meant that Kostović did not have enough opportunities for sustained pressure on return, even in periods when she managed to strike several aggressive shots in a row. After the match, according to The Guardian, Sabalenka assessed her performance very positively and emphasized that she was pleased to have finished the encounter in two sets, while acknowledging that her opponent increased her resistance in the second set.

For Sabalenka, an important entry into a tournament she has not yet won

For Sabalenka, the first-round victory carries more weight than merely advancing. Wimbledon is the only Grand Slam tournament at which she has not yet played a final, although the WTA recalled that she has reached the semifinals three times. On the grass of the All England Club, her power and aggression can be extremely effective, but they also require precise risk management because the fast surface punishes every spell of mistimed hitting. In that sense, the match against Kostović served as a controlled opening: there was enough rhythm to enter the tournament, but not enough prolonged crises to spend additional energy. The WTA also highlighted that Sabalenka continued her run of successful openings at Grand Slam tournaments and that against qualifiers in the main draws of the biggest tournaments she still does not drop sets.

At the same time, the broader context of her season stood in the background of her performance. The WTA profile states that Sabalenka entered 2026 as the leading player in the rankings, with titles in Brisbane, Indian Wells and Miami, while The Guardian recalled that after a painful defeat at Roland Garros she looked for ways to better manage pressure in the closing stages of matches. In London, it was therefore watched especially closely how she would react after losing serve while serving for victory. The response was quick and authoritative: instead of allowing the set to be extended, she immediately applied pressure again on return, earned a break and finished the match. Such a reaction does not guarantee success in later rounds, but for the top seed it represents a stable start to a tournament in which every early complication is potentially dangerous.

Kostović showed character in the most difficult possible debut

Teodora Kostović left the singles competition already after the first round, but her Wimbledon appearance cannot be reduced solely to a defeat. Before the match, the WTA wrote that the Serbian player, after her final qualifying victory against Zhu Lin 6:3, 6:4, said that she wanted to play against Sabalenka, and less than 24 hours later the draw brought her exactly that challenge. Such an attitude fits the image of a player who, according to the WTA profile, broke out beyond the lower ranks and made significant progress in the rankings during 2025. The WTA also noted that Kostović had previously enjoyed success on grass in junior competition, including a title at Roehampton, which explains why she arrived at Wimbledon with visible confidence despite her outsider status.

On court, it was visible that her game had a clear attacking intention, but also that against Sabalenka there is not much room for error. When the Serbian tennis player managed to shorten the point and attack first, she could reach attractive solutions; when Sabalenka gained the initiative, the rally most often quickly came under the top seed's control. Kostović managed to involve the crowd in the second set, especially after the break for 3:5, and according to the WTA report, she then gestured for additional noise from the stands. That moment showed the competitive personality the WTA had described ahead of the tournament, but also the limits that appear in a debut Grand Slam match against a player with so much experience. More important for her development than the result itself may be the experience of playing on Wimbledon's biggest court against the world's highest-ranked player.

Next obstacle: McCartney Kessler

According to Wimbledon's official draw, Sabalenka will play in the second round against American McCartney Kessler, who defeated Oleksandra Oliynykova 6:0, 6:0 in the first round. That fact further emphasizes that the next round brings together two players who opened the tournament without dropping a set, although from completely different starting positions. Sabalenka enters as the top seed and one of the main candidates for the title, while Kessler has the opportunity to enter the match with less external pressure and with a convincing result from her opening performance. For Sabalenka, the task will be to maintain serving efficiency and avoid periods of declining concentration like the one that appeared while serving for the match against Kostović. In the first week of Wimbledon, such details often decide whether a favorite advances routinely or gives her opponent a chance to get involved on the scoreboard.

The broader tournament framework also increases the importance of every early performance. According to Wimbledon's official website, the 2026 Championships run from June 29 to July 12, and the tournament is once again played on the grass courts of the All England Lawn Tennis Club in London. Wimbledon's official prize money data lists a total fund of £64.2 million, while the winners of the women's and men's singles each receive £3.6 million. These figures reflect the scale of the tournament, but the sporting logic of the first week remains simple: even the biggest favorites must quickly find rhythm, adapt to grass and avoid unnecessary minutes on court. Against Kostović, Sabalenka fulfilled exactly that basic goal.

An opening day on which the favorites did not spend too much energy

Sabalenka's victory fitted into the opening day of the tournament, in which some highly ranked players quickly dealt with their opening duties. Wimbledon's official schedule recorded that Coco Gauff, the seventh seed, defeated Tamara Korpatsch 6:2, 6:1, while Naomi Osaka defeated Elsa Jacquemot 6:1, 7:5 on Court No. 3. The WTA reported the same day that Sabalenka was among the players who reached the second round without major scoreboard shocks. Such an outcome does not diminish the demanding nature of the tournament, especially because the grass in the first days can change from game to game and because lower-ranked players often play freely against favorites. Still, for Sabalenka the most important thing was to enter the tournament without a long stay on court and without losing a set.

Wimbledon often rewards players who early find the balance between aggression and patience, and that was exactly the key task for Sabalenka in the first round. Against Kostović, she did not have to show the full range of tactical solutions, but she showed that the serve and first shot function well enough for safe progress. The Serbian qualifier managed in several periods to bring energy and courage into the match, but she could not maintain a level that would knock Sabalenka out of rhythm for longer. The top seed now enters the second round with the expected result, and her pursuit of a first Wimbledon final continues against Kessler. After the opening 6:2, 6:3, the message from Centre Court was clear: Sabalenka opened the tournament firmly enough to avoid drama, but also consciously enough to know that the real tests are yet to come.

Sources:
- Wimbledon / AELTC – official Wimbledon 2026 women's singles draw and confirmation of the Sabalenka - Kostović result and next opponent (link)
- Wimbledon / AELTC – official schedule and results of the first day of the tournament, including the Centre Court match (link)
- WTA – report on Aryna Sabalenka's victory over Teodora Kostović, match statistics and second-round context (link)
- WTA – Aryna Sabalenka profile, ranking, career data and tournament results (link)
- WTA – article on Teodora Kostović after qualifying, her wish to face Sabalenka and the background to her entry into the main draw (link)
- The Guardian – match report, Sabalenka's reactions and description of the closing stage of the second set (link)
- Wimbledon / AELTC – official Wimbledon 2026 dates (link)
- Wimbledon / AELTC – official data on tournament prize money and finances for 2026 (link)