Omar Abdel Aziz became the lone men's seed to make it through to the last four of the Egyptian Circuit No1 after beating fellow Egyptian Wael Farag in the quarter-finals of the PSA World Tour Challenger 10 squash event at the Shooting Club in Cairo.
The 27-year-old second seed from Cairo despatched 21-year-old Farag 11-5, 11-6, 11-3 in just 28 minutes – and will now face Amr Swelim for a place in the final.
The Cairo-born Italian ousted Egyptian qualifier Mohamed Abouelghar 11-8, 14-12, 11-5.
But Omar Abdel Meguid pulled off the biggest upset when he overcame favourite Karim Abdel Gawad 13-11, 5-11, 11-7, 8-11, 11-9 in a 113-minute marathon.
Unseeded Meguid, ranked more than 60 places lower than his opponent, now takes on fellow countryman Amr Khaled Khalifa.
Unseeded Khalifa, the reigning World Junior Champion, stunned fourth seed Andrew Wagih Shoukry 11-6, 11-7, 11-8.
Order was restored in the women's WISPA World Tour 8 event when the four top seeds survived the quarter-finals in straightforward style.
Favourite Heba El Torky faced her sister Nouran El Torky for the second time on the WISPA Tour – but again kept her younger sibling at bay with a 10-12, 11-7, 12-10, 11-6 victory.
The 20-year-old from Alexandria now faces England's newly-crowned European Junior champion Emily Whitlock after the 17-year-old third seed defeated 18-year-old Egyptian Salma Hany 11-9, 11-8, 11-3.
RESULTS: Egyptian Circuit No1, Cairo, Egypt
Men's 1st round:
[1] Karim Abdel Gawad (EGY) bt Mazen Hesham Ga Sabry (EGY) 5-11, 11-9, 14-12, 11-8 (47m)
Omar Abdel Meguid (EGY) bt Charles Sharpes (ENG) 11-9, 11-4, 11-6 (35m)
Amr Khaled Khalifa (EGY) bt [Q] Zahed Mohamed (EGY) 11-9, 11-6, 11-7 (27m)
[4] Andrew Wagih Shoukry (EGY) bt Joan Lezaud (FRA) 11-5, 11-5, 19-17 (28m)
[Q] Mohamed Abouelghar (EGY) bt [3] Ali Farag (EGY) 11-8, 11-7, 4-11, 11-4 (41m)
Amr Swelim (ITA) bt Mazen Gamal (EGY) 11-1, 11-5, 11-4 (22m)
Wael Farag (EGY) bt [Q] Ahmed Hawas (EGY) 5-11, 11-6, 11-9, 11-6 (33m)
[2] Omar Abdel Aziz (EGY) bt [Q] Karim Ali Fathi (EGY) 8-11, 11-4, 11-9, 18-16 (75m)
Quarter-finals:
Omar Abdel Meguid (EGY) bt [1] Karim Abdel Gawad (EGY) 13-11, 5-11, 11-7, 8-11, 11-9 (113m)
Amr Khaled Khalifa (EGY) bt [4] Andrew Wagih Shoukry (EGY) 11-6, 11-7, 11-8 (47m)
Amr Swelim (ITA) bt [Q] Mohamed Abouelghar (EGY) 11-8, 14-12, 11-5 (34m)
[2] Omar Abdel Aziz (EGY) bt Wael Farag (EGY) 11-5, 11-6, 11-3 (28m)
Women’s 1st round:
[1] Heba El Torky (EGY) bt [Q] Nouran Ahmed Gohar (EGY) 11-4, 11-6, 11-5
[5] Nouran El Torky (EGY) bt Salma Hatem Youssef (EGY) 11-9, 4-11, 11-7, 7-11, 11-6 (37m)
[3] Emily Whitlock (ENG) bt Haidi Lala (EGY) 11-2, 11-5, 11-6 (28m)
Salma Hany (EGY) bt [7] Merhan Amr Mahmoud (EGY) 9-11, 11-3, 11-9, 9-11, 13-11 (67m)
[6] Birgit Coufal (AUT) bt Mayar Aly Ezzo (EGY) 11-2, 11-3, 11-5 (20m)
[4] Siyoli Waters (RSA) bt Salma Nassar (EGY) 11-5, 11-5, 5-11, 11-7 (43m)
[Q] Salma Hany Ibrahim Ahmed (EGY) bt [8] Yathreb Adel (EGY) 9-4 ret.
[2] Kanzy Emad El-Defrawy (EGY) bt Nihal Alaa Bayoumi (EGY) 10-0 ret.
Quarter-finals:
[1] Heba El Torky (EGY) bt [5] Nouran El Torky (EGY) 10-12, 11-7, 12-10, 11-6 (28m)
[3] Emily Whitlock (ENG) bt Salma Hany (EGY) 11-9, 11-8, 11-3 (30m)
[4] Siyoli Waters (RSA) bt [6] Birgit Coufal (AUT) 11-5, 11-7, 12-10 (22m)
[2] Kanzy Emad El-Defrawy (EGY) bt [Q] Salma Hany Ibrahim Ahmed (EGY) 11-4, 11-5, 11-6 (25m)
Men's semi-final line-up:
Omar Abdel Meguid (EGY) v Amr Khaled Khalifa (EGY)
[2] Omar Abdel Aziz (EGY) v Amr Swelim (ITA)
Women's semi-final line-up:
[1] Heba El Torky (EGY) v [3] Emily Whitlock (ENG)
[2] Kanzy Emad El-Defrawy (EGY) v [4] Siyoli Waters (RSA)