Mazen, who had a first round bye, needed just 18 minutes to beat Ho Wai Yeung of Hong Kong. On the other hand, Olga stayed a little longer for her win over Sammer Anjun.
India had lot of disappointment in store today as Hiteswar Singh, Maninder Singh Sandhu and Sachika Ingale all crashed out.
Late in the evening India's best bet Ravi Dixit fell and it was left to Aparajitha Balamurukan, the local girl to bring relief with a good win over seeded Teh Min Jie of Malaysia to earn a quarterfinal berth.
Men: Pre-quarterfinals: Mazen Sabri (EGY) bt Ho Wai Yeung (HKG) 11-4, 11-5, 11-5; Sanjay Singh (MAS) bt Ruan Oliver (RSA) 11-9, 11-5, 11-6; Joel Makin (GBR) bt Nell Van Der Merwe (RSA) 11-7, 11-4, 11-7; Andrew Martin (RSA) bt Ravi Dixit (IND) 11-9, 11-4, 6-11, 4-11, 11-8; Eddie Charlton (GBR) bt Ullah Rizwn Gul (PAK) 11-1, 11-6, 11-4; (R-1): Ho Waub Yeung bt Theo Parent (FRA) 11-6, 11-6, 11-6; Ruan Oliver bt Babrak Khan (PAK) 11-9, 11-2, 6-11, 11-8; Cameron James Seth (CAN) bt Marc Vaez Olivera (FRA) 12-10, 11-8, 11-9; Ullah Rizwan Gul (PAK) bt Hiteshwar Singh Riar (IND) 11-5, 11-5, 11-6; Martin Moik (SLK) bt Darren Chn Ti Lunn (MAS) 11-3, 7-11, 9-11, 11-8, 13-11; Andrew Martin (RSA) bt Antoine Camille Petrucci (FRA) 11-8, 11-8, 11-5; James Van Staveren (CAN) bt Maninder Singh Sandhu (IND) 11-7, 11-8, 11-5.
