British number one Elena Baltacha reached her first final of the year after beating Canada's Stephanie Dubois in the Aegon Challenge semi-finals.
Baltacha won 6-2 6-2 to set up a meeting with Petra Cetkovska of the Czech Republic in Nottingham on Sunday.
Cetkovska, ranked 92 in the world and 18 places below Baltacha, defeated Tamarine Tanasugarn 6-3 6-3.
"I maybe didn't play as well as I have done in other matches but I was smart on the big points," Baltacha said.
"I kept myself together and I kept grafting and stuck to my guns. In the end, even though she came up with some unbelievable stuff, when I needed to take control, I did.
"I had to work hard and I'm glad I managed to get the job done before the rain came. I've never played Cetkovska before before but she's obviously playing really well this week - but then so am I."
Elsewhere, Slovakia's Daniela Hantuchova reached the Aegon Classic final in Birmingham after beating second seed Ana Ivanovic 6-7 (2-7) 6-3 6-2.
It was a first WTA Tour semi-final in eight months for the Serb but she mixed aces with double faults and her constant unforced errors saw her lose out.
Ivanovic failed to convert 18 break points and let slip a 5-1 lead in the first set before finally winning the tie-break.
The former world number one had two break points in the fifth game of the second set and five more in the seventh before falling away.
Hantuchova, the fourth seed, handled the important points better, as well as two rain delays, as she reached her 12th WTA Tour final.
She will now play Germany's Sabine Lisicki, who beat third seed Shuai Peng 6-3 6-1.
Meanwhile, world number one and home favourite Caroline Wozniacki will meet fourth seed Lucie Safarova of the Czech Republic in the final of the Danish Open in Copenhagen.
Wozniacki beat Germany's Mona Barthel 6-1 6-2 while Safarova was a 1-6 6-4 6-2 winner over Croatia's Petra Martic.