Iga Świątek defeated Sorana Cirstea 6–3, 6–2 in the round of 16 at the WTA 250 event in Seoul on hard court, confirming her status as the overwhelming pre-match favourite with odds of 1.09 to Cirstea's 9.05. The Polish world number one controlled the encounter from the outset, breaking serve multiple times across both sets to secure a commanding victory in straight sets. Cirstea, seeded considerably lower, struggled to find rhythm against Świątek's aggressive baseline game and could not sustain competitive pressure in either set. The result underscores Świątek's dominance on hard courts this season and her continued form heading into the latter stages of the Asian swing.