The 21-year-old tennis player from Saratov, seeded seventh, beat Wang Qiang of China in the semifinal match in straight sets 6-3, 6-0.
The game lasted 1 hour.
In the final, Potapova will play with Maria Bouzkova (8th seed) from the Czech Republic.
The prize fund of the tournament is about $250,000.
Earlier it was reported that the picture of Japanese tennis player Naomi Osaka with a butterfly, which was taken at the Australian Open, was recognized as sports photography of the year.