Akwamuman Senior High School remains the biggest casualty despite their match-strolling performance against Mfantsipim after they failed to qualify for the quarters.
The Eastern Regional-based school lost the ticket to Keta School of Business who piped them on a two-goal haul.
Ketabusco have joined Mfantsipim from group A.
Koforidua Secondary Technical School’s title ambitions are on course after a recording a 100% success in the group with victories over the Ghana Lebanon and Islamic School, St Thomas Aquinas and Opoku Ware.
They topped the group and secured qualification alongside Kumasi giants Opoku Ware School.
Group C produced thrills and turns and had to take the final games to decide the qualifiers.
Keta Senior High managed three victories and topped the group.
Ghana Secondary Technical School came second after two wins and a defeat with King College and whipping boys Presec, Legon bowing out.
Prempeh College and Pope Johns secured qualification from group D
Quarter finals fixtures
Mfantsipim vs Opoku Ware
Keta School of Business vs Koforidua Secondary Technical School (KSTS)
Keta Senior High vs Poppe Johns
Ghana Secondary Technical School vs Prempeh College