In the men's semifinals, Zahed defeated Saqib Yousaf of Pakistan 11-6 7-11 11-1 11-7, while Sabri beat Eddie Charlton of Great Britain 13-11 11-7 11-9.
In the women's event, while Great Britain's Camilla beat Farah Abdel Megid of Egypt 10-12 11-9 11-3 11-7 in the first semifinal, Ertlova got the better of South Africa's Alexandra Fuller 11-7 11-3 11-5 in the other last four match.
Semi-final:
Men: Zahed Mohammad (EGY) bt Saqib Yousaf (PAK) 11-6 7-11 11-1 11-7, Mazen Sabri (EGY) bt Eddie Charlton (GBR) 13-11 11-7 11-9.
Women: Camilla Tomlinson (GBR) bt Farah Abdel Megid (EGY) 10-12 11-9 11-3 11-7, Olga Ertlova (Czech Republic) bt Alexandra Fuller (RSA) 11-7 11-3 11-5.