Dubai Open 2026 Quarterfinals: Seeded Control

The Dubai Open quarterfinals on Thursday were, for the most part, an exercise in order. Three seeded players dispatched their unseeded opponents with varying degrees of efficiency, and one did not. The day’s results set up a semifinals draw that pits the tournament’s top seed against its third in what promises to be the marquee match of the week.

(3) Daniil Medvedev vs. Jenson Brooksby—6-2, 6-1

The opening match of the day lasted just under an hour and was settled long before that.

Daniil Medvedev has been in the kind of form this season that recalls his breakthrough years. He’s shown composure and precision, and been completely devoid of the on-court volatility that came to define his reputation at events like the U.S. Open. The Russian third seed broke Brooksby’s serve in the opening game and from that point treated the remainder of the match as a formality. His groundstrokes were consistently deep and well-placed, keeping Brooksby pinned to the baseline while repeatedly targeting the American’s backhand, which offered little resistance throughout.

The serve statistics tell the clearest story. Medvedev landed 83% of his first serves and won 77% of those points, recording 7 aces against a player who never generated a single break point opportunity. Brooksby’s own serve, ordinarily a weapon, was largely neutralized. Medvedev applied relentless pressure on return, stepping inside the baseline on both first and second serves to dictate the point from the outset.

The 6-2, 6-1 scoreline was a fair reflection of the contest. Medvedev advances to the semifinals having barely broken a sweat.

(1) Felix Auger-Aliassime vs. (8) Jiri Lehecka—6-3, 7-6

The second match of the day offered considerably more resistance, though the outcome was never seriously in doubt.

Felix Auger-Aliassime has been in commanding form since the start of the new year, and he carried that authority into his quarterfinal against the eighth seed. The first set turned on a pivotal service break at 3-3, secured after a grueling 13-minute game that cycled through multiple advantage points before the Canadian finally converted. From that moment, Auger-Aliassime controlled the set with the kind of consistent ball-striking that has become his calling card. He finished the match with just 9 unforced errors to Lehecka’s 22, a differential that effectively summarizes how one-sided the contest was in terms of quality. The second set was a different affair. Both men held their serve with ease in a set that produced 12 victorious service games and just one double fault. Auger-Aliassime dominated in the ace column, recording 12 to Lehecka’s 2, and won over 81% of his service points. But Lehecka matched him game for game, and the set was decided by a tiebreak.

The tiebreak opened with both players trading holds to reach 2-2, before Auger-Aliassime seized the momentum at 3-2 and did not look back. He closed out the match with an ace, the 12th of his afternoon, to advance 6-3, 7-6.

(5) Andrey Rublev vs. Arthur Rinderknech—6-2, 6-4

The third match of the day had the aesthetic of a chore. Andrey Rublev dispatched Frenchman Arthur Rinderknech 6-2, 6-4 in just over an hour. It was a result that felt inevitable from roughly the first game.

Rinderknech is not without weapons. He out-aced Rublev 7 to 5, and the two men were practically indistinguishable on a speed gun, both hovering around 215 km/h on their fastest deliveries. On paper, a contest. In practice, Rublev simply took everything else away. He won 41% of first serve return points to Rinderknech’s 21% — meaning the Frenchman’s serve was largely decorative. Rublev converted 4 of 7 break points. Rinderknech converted 1 of 2, which is a flattering fraction for a man who spent most of the match being broken open. The clearest summary of the afternoon is this: Rublev won 100% of his net points. Five from five. Rinderknech, on the other hand, managed 2 from 8 at net — a 25% success rate that suggests he may have been better served staying home. Rublev committed just 11 unforced errors to Rinderknech’s 18, and walked off the court having won 59% of total points. Not a bloodbath. Just a quiet, efficient erasure.

(6) Jakub Mensik vs. Tallon Greekspoor—6-3, 3-6, 6-2

And then this happened.

Jakub Mensik, widely regarded as one of the brightest young prospects in the sport, entered the final quarterfinal as the clear favourite against an unseeded Dutchman who had no business being this deep in the draw. He left having lost in three sets to a player most casual fans would struggle to place in the top 50.

The raw numbers make the result difficult to explain. Mensik out-aced Griekspoor 16 to 6. He landed his first serve at a 67% clip to Griekspoor’s 59%. He had a higher winner count and a better net point percentage, all while committing just one double fault in 102 minutes of tennis. By the metrics, Mensik was the better player on the day.

He was not the better player on the day.

Griekspoor’s ball-striking was of a quality that simply did not allow Mensik to settle. The Dutchman won 83% of his first serve points, converted all three of his break point opportunities, and was relentless in his aggression from the back of the court, consistently denying Mensik the time and space he needed to impose himself. Where the drop shot appeared, it was executed with disarming delicacy — Mensik scrambling to retrieve balls that landed with the precision of a player operating well above his seeding might suggest.

Mensik took the second set on the back of dominant serving, and for a brief period, the expected outcome seemed to be reasserting itself. The third set put an end to that. Griekspoor took five of the first six games and did not look back.

The win is the latest in a remarkable February for the 29-year-old. It marks his third quarterfinal appearance in the month and his first semifinal of those three — a run that also includes the dismissal of second seed Alexander Bublik in the previous round.

Friday’s semifinals will see first seed Felix Auger-Aliassime take on third seed Daniil Medvedev in the day’s headline fixture, while fifth seed Andrey Rublev faces an unseeded Tallon Griekspoor in the day’s more unpredictable half of the draw. For Griekspoor, a player who was not expected to be here, it is a semifinal against a top-five opponent. For the three seeds who won Thursday, it is the expected continuation of a week that has largely gone to plan.

Whether it stays that way is a question the Dubai courts will answer on Friday.