US Open 2026: Sabalenka Beats Pegula 7-5, 6-2 to Reach a Fourth Straight Final

At the right corner of the court, Jessica Pegula tossed a second serve that climbed barely a hand's width above the net and drifted slightly inward. Aryna Sabalenka stepped inside the baseline, took the ball at the highest point in her strike zone, and sent it back toward Pegula's left with a cross-court forehand that travelled against the direction of her opponent's movement. The ball landed near the sideline while Pegula had turned only halfway. The score in the twelfth game of the opening set jumped to 0-40.

More than 20,000 people inside Arthur Ashe Stadium went silent for exactly one breath, then erupted. Three minutes earlier, the set had been an uncomfortable deadlock: the first eight games were shared after 25 minutes, with the average rally lasting just two and a half shots. Three minutes later, that set belonged to Sabalenka at 7-5, closed out in 43 minutes. The remaining 34 minutes of the semi-final were a formality: 6-2.

On the evening of September 10 local time in New York, the two-time defending champion beat the third seed 7-5, 6-2 to reach a fourth consecutive final at Flushing Meadows. She finished with 29 winners to Pegula's 12, never dropped serve, and faced exactly one break point all night. It was her 19th consecutive victory at the US Open.

This match needs to be placed in its proper stratigraphic layer.

For the first time since 2026, the top four women's seeds reached the semi-finals at the US Open; and for the first time at any Grand Slam since Wimbledon in 2026. A beautiful statistic, worth printing on the bulletin board. I will return to it at the end, because it is telling a different story from the one most people believe it tells.

As for Sabalenka, she arrived at this semi-final having gone through Camila Osorio, Polina Iatcenko, Kamilla Rakhimova and Taylor Townsend without dropping a set. Only in the quarter-final did she meet her first genuine test, in the shape of Wimbledon champion Linda Noskova, and she needed 2hr 22min, three sets and two tie-breaks to win 7-6, 3-6, 7-6. To me, that is the single most important data point before this semi-final, and the most widely ignored one on television.

For Pegula, this was the third straight year she had gone deep into the second week in New York, and the third straight year she found the same obstacle in her path. In 2026 she lost the final to Sabalenka 7-5, 7-5. Twelve months later she dragged her opponent into a third set before falling 4-6, 6-3, 6-4 in the semi-final. This year the contest was far more straightforward: Pegula lost the first set in the twelfth game and never recovered the initiative.

One detail sits outside the court but shaped how Sabalenka entered this match. In the summer, on the grass in Berlin, it was Pegula who beat her. Sabalenka said afterwards: "It really made me feel like I had little chance today, but it also made me know I had to be focused from the beginning until the end." She called it the reason she sustained that level of concentration and performance through the semi-final.

And there is one more layer. Whatever happens in Saturday's final, Sabalenka's 99-week reign at world No 1 will end when the rankings are updated on Monday, because Elena Rybakina's run to the semi-finals has already guaranteed it. Asked how she felt about possibly winning the tournament while losing the top ranking, her first answer was blunt: "I don't care." She added: "Not much I could do about that. I can only focus on myself, stay in the moment and try to do my best right now."

The first set: a balance built on errors, not on chances

The route to 4-4 after eight games, lasting 25 minutes, is one of the more revealing stretches of data from the entire fortnight. The average rally lasted just two and a half shots. At that rally length, a match is not decided by endurance but by the ability to finish early. This is the structural shape Sabalenka always benefits from, because every short rally grants her licence to unleash the highest-percentage finishing shot in her arsenal.

Yet Pegula held on. She absorbed the weight of shot, took the ball early, kept her depth at the baseline, and neutralised Sabalenka's firepower with the champion's own needless errors. This needs to be stated plainly: across those first 43 minutes, the only thing creating opportunity for Pegula was Sabalenka's error rate. When that rate fell, the balance vanished with it.

The 4-4 game and the value of the second shot

Pegula earned her first opening at 4-all. A Sabalenka double fault at deuce handed her the first break point of the night, and the crowd erupted. Sabalenka saved it immediately with a blistering forehand winner, then closed the game with a winning forehand volley. She held, and that was the psychological hinge of the entire set.

Pegula described the moment: "Even on that break point, I hit a good return, and she just rips a forehand cross." It is the most accurate description of the whole match. Pegula did everything she could do, and the reply still passed her by.

In the twelfth game, with Pegula serving at 5-6, Sabalenka shifted into another gear. She opened with a backhand winner after an eight-shot exchange, drew an error after another eight-shot rally, then crushed a forehand winner off a second serve to make it 0-40. Pegula saved the first set point. She could not save the second.

The nature of the shift: Pegula's second serve

When I rewatch the tape of that twelfth game, what changed was not Sabalenka's serve. It was her return position. Having recognised that at 5-6 Pegula's second serve lacked the weight to push her out of the attacking zone, Sabalenka moved inside the baseline and turned every second serve into a dead ball. This is the kind of adjustment that never appears on the scoreboard, and it is precisely what changes the score.

Across the match, Pegula won only five of 19 points on her second serve, roughly 26%. At this level, that is a structural leak, not a form problem. Every Pegula service game carried a one-in-three chance of surrender, and Sabalenka is the worst opponent on tour to hand that chance to.

At the other end, Sabalenka never dropped serve and faced a single break point all night. It means that even when Pegula returned at her best, she still had no way in. This match offered no path for the player with the weaker serve.

The second set: once the structure had been read

Pegula held for 1-all early in the second set. Two games later, Sabalenka began attacking the second serve directly, and broke on her fourth opportunity with another forehand winner. She consolidated for 4-1 and never let up. The final game brought another break, closing out a 6-2 victory.

Pegula said: "I tried to stick around to see if the level would go off. But it seemed like it just got better as the match went on." From a data perspective, that observation is entirely correct. Nothing in the second set suggested fatigue: the winner count kept climbing, and the service games stayed intact.

The final winner count was 29 to 12, meaning Sabalenka generated roughly 2.4 times as many terminating shots as her opponent. Pegula did not play badly. She simply lacked a weapon to manufacture points once the rally was pushed outside her comfort zone. She said so herself: "I did my best. I thought I didn't play bad."

Decisive moments and the speed of decision-making

Based on my experience tracking matches over many years, I keep a habit of logging the five moments I consider decisive in every major match. For this semi-final, my list reads: the double fault at deuce in the 4-4 game; the forehand winner that saved break point immediately after; the forehand volley that closed the hold; the backhand winner that launched the 0-40 sequence at 5-6; and the forehand winner off a second serve in the second set. Five moments, all five belonging to Sabalenka.

What stands out is how she described her own state afterwards: "I felt like whatever decision I would make, it is the right decision." At this level, the gap between the leading players is not in shot power but in decision speed. Sabalenka chose her direction before Pegula could choose her position. It is a metric absent from the official statistics, and present in every single rally.

Another geological layer: history and the price of the No 1 ranking

Sabalenka is now one match from becoming the third woman in history to win three consecutive US Open titles, after Chris Evert and Serena Williams. She has reached the final in each of her past four appearances here, a run that began with her defeat by Coco Gauff in the 2026 championship match.

People call this a one-sided semi-final. I call it a layer nobody has dug into. Because for the first 43 minutes, this match was three points away from a different outcome: a forehand that saved break point, a forehand volley, and a forehand winner in the 5-6 game. Had Pegula won that game, we would have had a second set with an entirely different structure, and possibly an entirely different story.

I want to pause on another paradox. Sabalenka can win this tournament and lose the world No 1 ranking in the same week. The ranking is a model built on 52 weeks of data; a title is a single event. When the model and the event say contradictory things, the public tends to trust the trophy. I keep both in my notebook, because both are true in their own way.

And I want to return to the statistic I promised at the start: the first time since 2026 that the top four seeds have all reached the US Open semi-finals. A fine indicator, but it must be read correctly. Seeding is a product of the ranking system, measuring stability over the previous 12 months, not the depth of a tournament in a given week. Four top seeds reaching the semi-finals says the leading group in women's tennis is stable. It does not say the rest of the field is closing in on them.

Pegula summed up her opponent with a line that rings true: "I don't know who pissed her off today. Hopefully it wasn't me totally, but it might have been." Then she admitted: "Honestly, I don't really know if there was much I could do today." That is the sentence of a player who was beaten without being deceived.

Every match is an archaeological site. Every set is a cultural layer. I am only the one taking notes.

The final and the questions without answers

Sabalenka will face Elena Rybakina or Coco Gauff in Saturday's final. A player's tactics today are the relief sculpture of tennis history tomorrow, and that relief is raising one very specific question: can an opponent with a first serve heavy enough to avoid defensive positions drag Sabalenka out of her attacking zone?

The centre court is dazzling, but I keep looking down at the scoreboard in the corner. Down there, a second serve is falling in free flight, and it will keep falling until someone reads it before it leaves the hand.