KARACHI, Jan 6: Formidable Karachi opened its campaign on a winning note, registering 23-16 victory over Hyderabad in the Sindh Inter-district girls’ basketball championship at Public School court Mirpurkhas on Friday. According to results available here.In the two other matches, Mirpurkhas outplayed Sukkur 23-12 while Sukkur whipped Mirpurkhas 16-10.