Quarter-finals:
[1] Tricia Chuah (MAS) bt [8] Lucie Fialova (CZE) 9-2, 9-1, 9-5 (37m)
Fiona Moverley (ENG) bt [3] Milou van der Heijden (NED) 8-10, 9-7, 9-1, 9-2 (41m)
[6] Karen Kronemeyer (NED) bt [4] Birgit Coufal (AUT) 9-2, 9-2, 9-4 (27m)
[2] Emma Beddoes (ENG) bt [5] Daniela Schumann (GER) 9-1, 9-7, 9-4 (28m)
Semi-finals:
[1] Tricia Chuah (MAS) bt Fiona Moverley (ENG) 7-9, 10-9, 9-1, 7-9, 9-1 (48m)
[2] Emma Beddoes (ENG) bt [6] Karen Kronemeyer (NED) 9-5, 5-9, 9-5, 9-6 (63m)
The top two seeds will fight out the final of the Women's Colombo Open in Lisbon after prevailing over unexpected opponents in the semi-finals of the first WISPA World Tour squash event to be held in Portugal.
Malaysian favourite Tricia Chuah faced unseeded English opponent Fiona Moverley, who earlier in the day had upset third seed Milou van der Heijden. A second upset looked on the cards as the 20-year-old from Hull took the first game and forced the second into a tie-break.
After 48 minutes, however, Chuah survived 7-9, 10-9, 9-1, 7-9, 9-1 to reach her fourth WISPA final - but her first since September 2005.
Chuah will face another English opponent Emma Beddoes - the second seed from Leamington Spa who battled for 63 minutes to overcome Karen Kronemeyer, the sixth seed from the Netherlands, 9-5, 5-9, 9-5, 9-6 to reach the second Tour final of her career.