Heather Watson saved four match points before beating on Magda Linette in a gruelling contest to continue her superb run.
The British No 2 is through to her first WTA Tour semi-final in over a year after surviving a topsy-turvy contest to predominate 7-5 6-7 (4-7) 7-6 (8-6) in three hours and 2 minutes.
This was by far the best week of a period that is miserable and the success guarantees she will go back into the top 100 second week.
Watson victory over second-seed Wang Qiang has been impressive for two or more years and in Linette she faced a participant who has had a fine year.
While at Beijing a week she dropped only 3 games at a game to Watson the Pole won her first WTA title and also reached the final in Seoul last month.
Having won the first sets past five games, Watson had a game point when it was saved by operating at and levelled the competition.
The eighth seed afterward had four chances to win the match on Watsons function at but every time that the 27-year-old stood firm and she chose her third match point in the.
Watson will confront either Veronika Kudermetova or the next seed, Dayana Yastremska, at the semi-finals.

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