Alycia Parks will compete in her first ever WTA singles final after setting up a showdown against top seed Caroline Garcia at the Lyon Open.
The American beat Maryna Zanevska 6-3 7-6 (7-4) on Saturday, hitting 35 winners and 13 aces on the way to victory.
Parks has risen through the ranks in the last year, and explained how a laid back attitude has been the secret to her success in France.
"I think the key was just staying focused, and taking my time out there," Parks said after her win. "Every time I got ahead of myself, I would kind of lose points, so I would tell myself to slow down.
"This whole week, I'm kind of relaxed this week and just kept playing my game and doing me."
The 22-year-old will face Garcia on Sunday after she eased to a 6-2 6-2 win against Camila Osorio in just an hour and 12 minutes.
At the Thailand Open, Lesia Tsurenko will take on China's Zhu Lin in the final after the Ukrainian came past top seed Bianca Andreescu.
The Canadian retired hurt in the second set, though Tsurenko already led 7-5 4-0.
"The way [Andreescu was] playing every point, like she has an idea in every point, so of course she's an amazing player," Tsurenko said. "It was a big challenge for me to handle this, and I was just saying to myself that I have to keep fighting, and this is probably the main key that worked today for me."
Zhu defeated compatriot Xinyu Wang 6-2 6-4 to advance to Sunday's final.