Marta Kostyuk 9-0 on clay

Clay seasons can flip a tennis year fast — and Marta Kostyuk is right in the middle of one of those flips now. On April 29 in Madrid, she beat Linda Noskova 7-6(1), 6-0 to make her first semifinal at the tournament and push her 2026 clay record to 9-0. The bigger point is not just the number. It’s how clean the run has looked. Through Madrid’s first five rounds, nobody in either singles draw had reached the semifinals without losing a set except her. (wtatennis.com) ### Why does 9-0 matter? A 9-0 start on clay is the kind of stat that tells you this is not one nice week. Clay usually exposes shaky movement, rushed shot selection, and second serves that sit up. Kostyuk has handled all of that. She won the title in Rouen earlier in April, then carried that form straight into a WTA 1000 event in Madrid. (wtatennis.com) ### What happened against Noskova? The score looks routine by the end, but the first set was a mess in the most clay-season way possible — wind, cold, breaks everywhere, and neither player fully trusting the ball. Noskova jumped out early, and Kostyuk had to grind back. The hinge point was(wtatennis.com)and handed Noskova a bagel in 87 minutes total. (wtatennis.com) ### Why is the no-set-lost part such a big deal? Because Madrid is not a soft draw and not an easy place to stay tidy. Even players winning there usually have one ugly escape. Kostyuk hasn’t needed one yet. That suggests two things at (wtatennis.com)usually what separates a quarterfinalist from a real title threat. (wtatennis.com) ### Is this totally out of nowhere? Not really — but it is a step up. Kostyuk was already having a solid 2026 before clay. Her WTA match log shows a Brisbane final run in January, with wins over Mirra Andreeva, Amanda Anisimova, and Je(wtatennis.com)me steadier and more repeatable. (wtatennis.com) ### What has she actually won this spring? Rouen is the key marker. Kostyuk beat Veronika Podrez in an all-Ukrainian final to win her second career singles title and her first on clay. That mattered because it gave this stretch a trophy, not just encouraging losses to top players. Basicall(wtatennis.com)ing she already started. (wtatennis.com) ### Who was next in Madrid? Her semifinal opponent was Anastasia Potapova, a lucky loser who made a surprise run of her own. Their tour-level head-to-head was tied 2-2, but Kostyuk had won the last two meetings in straight sets, including(wtatennis.com)final. (wtatennis.com) ### Why does this matter beyond Madrid? Because women’s clay this spring has felt unusually open just below the very top names. Kostyuk is 23, ranked No. 23 on the WTA site, and now carrying the kind of form that can change seedings, e(wtatennis.com)ayer moving into the next tier. (wtatennis.com) ### Bottom line Kostyuk’s 9-0 clay start is news because it finally looks sturdy, not streaky. Madrid gave the run a bigger stage — and she looked like she belonged there. (wtatennis.com)