British number one Johanna Konta reached the Nottingham Open semi-finals for the first time with a straight-sets win over Australia's Ashleigh Barty.
The world number eight, 26, won 6-3 7-5 after converting her fourth match point against the 21-year-old.
Konta lost her serve midway through the second set before fighting back to claim four of the final five games.
"It was difficult, she started very strongly. I had to raise my game and only had one little dip," said Konta.
Konta, whose three career titles have all come on hard courts, is two more wins away from claiming her first WTA title on home soil.