In the quarterfinals of the WTA event in Seoul, Katie Volynets, currently ranked 77th in singles, will compete against Kimberly Birrell, who holds a singles ranking of 60. Volynets was born on December 31, 2001, and stands at 5'7" (170 cm), while Birrell was born on April 29, 1998.

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Volynets turned professional in 2014 and plays right-handed. Her highest singles ranking to date has been 60, while her career high in doubles is 121. Birrell's career high in singles is 47, with her highest doubles ranking being 121 as well.

In their head-to-head encounters, Volynets and Birrell have faced each other multiple times:

- On June 14, 2026, at the WTA Nottingham Qualifying Round 2, Volynets won 6-2, 7-6.

- At the WTA Dubai Qualifying Final on February 14, 2026, Birrell claimed victory with a score of 6-1, 6-3.

- In a match on October 13, 2025, at WTA Osaka, Birrell won 6-4, 7-6 against Volynets.

- Earlier, on June 21, 2025, at ATP/WTA Eastbourne, Volynets achieved a victory of 5-7, 6-4, 7-6.

Statistical breakdowns from their performances include:

- Volynets recorded 0 aces and 11 double faults, with a first serve percentage of 64% and a 61% win rate on first serve points.

- Birrell, meanwhile, had 1 ace and 57% for her first serve percentage, winning 50% of her first serve points.

Both players will look to improve their standings in this crucial matchup.