Rosmalen - Fourth-seeded Swiss teenager Belinda Bencic and Camila Giorgi, the Italian fifth seed, will meet in Sunday's final of the 's-Hertogenbosch grass-court tournament.
Bencic, the world number 33, reached her second career final with a 6-3, 6-3 win over Serb second seed Jelena Jankovic.
Giorgi, like Bencic, seeking a first title, knocked out home hope Kiki Bertens, 6-2, 6-4.
In the men's event, French qualifier Nicolas Mahut defeated Dutchman Robin Haase, 5-7, 6-3, 6-4.
Mahut, 33, will face David Goffin of Belgium for the title after the second seed beat Luxemburg's Gilles Muller 7-6 (7/4), 6-4.
Results from the sixth day of the ATP/WTA 's-Hertogenbosch tournament on Saturday (x denotes seeding):
Nicolas Mahut (FRA) bt Robin Haase (NED) 5-7, 6-3, 6-4
David Goffin (BEL x2) bt Gilles Muller (LUX) 7-6 (7/4), 6-4
Camila Giorgi (ITA x5) bt Kiki Bertens (NED) 6-2, 6-4
Belinda Bencic (SUI x4) bt Jelena Jankovic (SRB x2) 6-3, 6-3