Siniak grabbed the battle with an unpopular opponent. In Seoul she wrote the biggest quarterfinals this year

Siniakova Advances to Seoul Quarterfinals, Defeating Kasatkina in Straight sets

Seoul, South Korea – September 18, 2025 – Kateřina Siniaková secured her place ‍in the quarterfinals of ​the WTA 500 Seoul tournament today, overcoming Daria Kasatkina in ​two sets. The victory marks Siniaková’s third quarterfinal appearance on the top⁢ circuit this year and her​ first ‌in a tournament ⁢larger then a WTA 250 since June ⁢2024.

Despite Kasatkina’s recent⁣ struggles – having not reached a quarterfinal since January – Siniaková anticipated a challenging match, acknowledging a historically arduous head-to-head record. Siniaková had previously won six of seven encounters against the Russian-Australian player,‍ including a final appearance against her last year in Seoul.

The match proved to be a hard-fought contest,with Siniaková ultimately prevailing 7-6(2) ‌and 6-4 after nearly two hours of play. She initially faced a​ service break in the opening game but regained control,‍ dominating lengthy exchanges. ⁤After failing to convert a break point at 5-1, Siniaková recovered to ⁣win the first set in a tie-break, 7-2.

The ⁣second set followed a similar⁤ pattern, with Siniaková ‍building a 5-2 lead ⁤and successfully defending two break points to close⁢ out ​the‍ match.

This‌ win improves⁢ Siniaková’s record against players ranked in the Top 20 to 3-6 for the year. She has yet⁢ to ⁢drop a set in four matches played in Seoul, including qualifying rounds. ‌

Siniaková will next face Suzan Lamens,who upset fifth-seeded⁣ Diana ‌Šnajderová,in the quarterfinals.This will⁤ be Siniaková’s 21st career semifinal on the ‌WTA Tour, following her triumph at a WTA 125 event in Poland in ⁢August and a semifinal appearance in Cluj in February.

Results of WTA 500 in⁤ Seoul

(Originally published by⁢ Livesport messages)