Clonguish set up a semi-final meeting with Dromard following a surprise victory over 14-man Mullinalaghta.
Mullinalaghta led 0-8 to 0-4 at half-time before an impressive second-half display saw Liam Belton's men win 1-12 to 0-9.
Conor Leonard registered a point on 12 minutes as Mullinalaghta led 0-4 to 0-1. Mickey Cunningham pushed them four points clear on the stroke of half-time.
Clonguish started the second half with urgency. Matthew Carey eventually restored parity on 44 minutes.
On 48 minutes, Mullinalaghta were reduced to 14 men when Francis Mulligan was sent off. Two minutes later, their problems were compounded when Carey scored a penalty goal.
Clonguish followed up with three unanswered points resulting in a six-point victory. Next up is a semi-final meeting with Dromard who defeated Rathcline 1-15 to 0-9.