British No. 4 Katie Boulter lost out in a tight three-set encounter 5-7 6-0 7-5 against Petra Kvitova at Eastbourne.
Boulter, who earned the first top-10 win of her career this week when beating Karolina Pliskova, was up against it early on and trailed Kvitova 5-2 in the opening set.
She rallied to take the next five games, however, leaving the two-time Wimbledon champion shell-shocked.
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Kvitova was though able to respond in style, with a bagel swiftly taking the match to a decider.
Boulter was able to recover herself to stay on serve with Kvitova in the final set, for 11 games at least, with the Czech eventually breaking in the 12th to win it 7-5.
Earlier in the day, British No. 2 HarrietDart recorded an impressive victory over Jil Teichmann to reach the last 16 at Eastbourne.
The match had carried over from Tuesday with the encounter finely poised at one-set all.
Dart, who beat Madison Brengle in the opening round, edged the first set against Teichmann 9-7 on a tie-break.
Teichman, the No. 10 seed at Eastbourne, then hit back when winning the second set 6-4 before bad light stopped play.
When resuming on Wednesday, it was Dart who had the edge, and she clinched the decider 6-3 for the second-biggest win of her career.
Dart won her second match of the day after she returned to court to beat Marta Kostyuk in the last 16 and advance to the quarter-finals.
The 25-year-old triumphed 6-4, 2-6, 6-4 against the Ukrainian - her best ever result on the WTA Tour. She becomes the first British woman in five years to make the last eight in Eastbourne.
JodieBurrage, the world No. 169 who stunned top seed Paula Badosa on Tuesday, lost against Beatriz Haddad Maia.
The 23-year-old was convincingly beaten in straight sets by the Brazilian 6-1 6-2 as she exited at the round of 16 stage.
In the men’s draw at Eastbourne, British No. 1 CamNorrie – who will be seeded ninth at Wimbledon next week – comfortably beat Brandon Nakashima 6-4 6-2 to reach the quarters.
DanEvans endured a frustrating afternoon, exiting to Maxime Cressy with the American winning 7-6 6-4.

Highlights: Cressy beats Evans in straight sets at Eastbourne

RyanPeniston and JackDraper are the other male Brits in action on Wednesday.
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