Noskova Makes Dream WTA Finals Debut With Straight-Sets Win Over Late Call-Up Kostyuk

The first match of the WTA Finals lasted 86 minutes, and by the end of it the story of the tournament's opening day was written in straight sets: Linda Noskova, the 21-year-old Wimbledon champion, was ready for this stage, and Marta Kostyuk, called up with barely a day's notice, never quite got the chance to be.

Noskova beat Kostyuk 6-2, 6-4 on Sunday at Indian Wells to open Group 1 play, making it three wins in a row over the Ukrainian this season after victories at Wimbledon and the US Open. It was a debut with authority — the kind of performance that announces a player belongs among the eight best in the world, rather than merely arriving there.

The circumstances made it stranger than a normal opener. Kostyuk had travelled to the California desert as an alternate and only learned on Saturday that she would play, after defending champion and world No. 1 Elena Rybakina withdrew with a viral illness. She arrived on a four-match losing streak, the second-longest of her career, and still working her way back from a right wrist injury that had kept her out of September's Billie Jean King Cup final.

It showed from the first point. Kostyuk put a forehand into the net to open the match and sent another wide on break point. She broke straight back, a flash of the player who has spent the year knocking on the door of the top 10, but Noskova took her serve again and became the first to hold, going up 3-1 on her way to a 6-2 first set in just over half an hour.

Kostyuk was steadier in the second, but the pattern held. Noskova broke for a 4-2 lead and held serve the rest of the way, closing out the 1-hour, 26-minute victory without ever looking troubled. Kostyuk managed only 38 percent of her first serves and committed 11 unforced errors, numbers that tell the story of a player who never found her range in a match she had not expected to play.

For Noskova, the numbers keep stacking up in a season that has already delivered a Wimbledon title and a Billie Jean King Cup triumph for Czechia. Sunday was her 41st win of the year including team competition, a career high that passes the 40 she managed in 2025, and her fifth win over a top-10 player this season, tying her best for a year. She has now won 24 matches since the grass season began in June, level with Alexandra Eala for the most on tour, and she has won her past 37 matches after taking the first set. She is also the third-youngest Czech to win a match at the WTA Finals since the event began in 1972, older only than Helena Sukova and Petra Kvitova.

The two had already met on clay, grass and hard courts this season before Sunday, and Noskova now leads their head-to-head 3-1, with every meeting coming in 2026 as both women made the WTA Finals for the first time.

Noskova's next two round-robin matches will come against Coco Gauff and Jessica Pegula, the all-American pair who followed her onto court on Sunday. She has beaten Pegula in three of their four meetings, and her last win over Gauff came on the clay in Madrid. If her debut is any guide, neither will find her an easy opponent in the desert.