Zimbabwean Benjamin Lock secured a place in the quarterfinals of the Rwanda Open Kigali M25 after edging fifth seed Toufik Sahtali in straight sets in the second round on Thursday. The wildcard entrant produced a strong performance to defeat the Algerian 6-4, 6-4 at the RP Kigali/Kicukiro Ecology Tennis Club. Lock is one of two African players who advanced to the quarterfinals. South African Alec Beckley also progressed after beating Belgian Niklas Grunewald 6-3, 6-2. Beckley will face top seed Max Houkes in the quarterfinals after the Dutchman defeated Burundian prospect Allan Gatoto 6-2, 6-1. Elsewhere, third seed Calvin Hemery defeated Rodrigo Alujas 6-1, 6-4 to book his place in the last eight. Indian Dev Javia overcame American Preston Brown 6-3, 7-6(6), while second seed Florent Bax cruised past Indian Caheer Warik 6-1, 6-2. Israeli Yshai Oliel also advanced after defeating Marlon Vankan 6-4, 6-4, while Manuel Plunger outplayed three-time M25 Kigali winner Corentin Denolly 6-4, 6-0. Plunger and Denolly then switched from singles rivals to doubles teammates, teaming up to beat Louis Van Heck and Marlon Vankan 6-2, 6-1. The victory set up a semifinal clash with Allan Gatoto and Karl Shalin Shah. Quarterfinal Fixtures Max Houkes vs Alec Beckley Manuel Plunger vs Benjamin Lock Dev Javia vs Calvin Hemery Yshai Oliel vs Florent Bax
