Harriet Dart’s bid to reach her first WTA Tour semi-final ended in defeat to American Alison Riske at the Rothesay Open in Nottingham.
British number three Dart took the opening set in an impressive start before sixth seed Riske hit back to win 4-6 6-2 6-1 in two hours and 26 minutes.
Dart had beaten Italian third seed Camila Giorgi on Thursday in a rain-delayed match over two days to reach the last eight of a WTA Tour event for the first time.
But Riske, who overcame 2019 champion Caroline Garcia 6-4 7-5 to reach the quarter-finals, proved too strong for the world number 114.
Dart was broken in the sixth game of the opening set to trail 4-2, but responded with two breaks of her own to take the first set in just over an hour.
Both players lost their opening service games in the second set, but Riske took control with two more breaks to lead 5-2 and then served out to level the match.
Dart held serve to lead 1-0 in the decider, but was broken on three more occasions as Riske wrapped it up in 38 minutes to reach her sixth career semi-final on grass.
Maria Sakkari lost to Brazilian seventh seed Beatriz Haddad Maia, who stunned the Greek top seed 6-4 4-6 6-3.
Czech player Tereza Martincova beat China’s fourth seed Zhang Shuai in straight sets, 6-3 6-2, and will play Haddad Maia in the semi-finals.
In the men’s ATP Challenger event, Liam Broady missed out on his chance to reach the last four after losing in three sets to American seventh seed Jack Sock 7-6 (3) 1-6 6-4.
World number 144 Broady, ranked 34 places lower than Sock, hit back after losing a 59-minute opening set on a tie-break by breaking his opponent three times in the second to level the match.
But the British number five was unable to maintain his momentum in the decider as Sock sealed a decisive break in the opening game and went on to hold his next four service games for victory in two hours and 11 minutes.
Essex’s Ryan Peniston, the British number seven, saw his run ended in a 6-3 6-4 defeat to Australian fifth seed Alexei Popyrin in Friday’s opening quarter-final match.
