The Czech Republic always had the upper hand against Pavlyuchenkova, running away with the opening set 6-3.
But she seemed to have a ‘blonde moment’ with a torrid start to the second half and trailing 5-2.
With the rain clouds hovering over Devonshire Park, Zakopalova calmed her nerves to play a more aggressive game and up the tempo.
But rain interrupted the match, after Pavlyuchenkova’s sixth double fault had given Zakapalova a break point – which she converted to lead a set and 6-5.
Following the rain break, the pair came back for three minutes as Zakapaolov closed out to triumph.
The spectators at Court 1 had been treated to an intriguing battle as well as spectacular shots, with Zakopalova capturing five games on the bounce to book her berth in the last four – and ultimately a shot at winning the title.