Nicol David (MAS) bt  Natalie Grainger (USA) 9-7, 9-4, 9-5 (35m)
 Natalie Grinham (AUS) bt Omneya Abdel Kawy (EGY) 9-5, 9-4, 9-2 (26m)
David, the world number one from Penang who was runner-up in Rye two years ago, despatched US star Natalie Grainger, the No4 seed from Washington DC, 9-7, 9-4, 9-5 in 35 minutes.
In the other semi-final, defending champion Natalie Grinham - the world number two from Queensland looking for her third title since 2003 - avenged the earlier shock defeat of older sister Rachael Grinham by beating surprise Egyptian opponent Omneya Abdel Kawy 9-5, 9-4, 9-2 in just 26 minutes.
The final will be the illustrious pair's 17th meeting since November 2003 - six of which were in 2007 - with the head-to-head count standing at 10-6 to the Malaysian.