Holders Ardscoil Ris are safely through to the last eight of this year's Dr Harty Cup competition.
The Limerick students ran out comfortable 4-16 to 1-7 winners over Charleville CBS in today's second round clash at Kilmallock.
Elsewhere, last year's defeated finalists Our Lady's Templemore inflicted a 6-27 to 0-3 defeat on Hamilton HS Bandon at Ballyagran.
Dr Harty Cup round 2 results
Our Lady's Templemore 6-27, Hamilton HS Bandon 0-3
Nenagh CBS 1-20, Castletroy College 1-13
Ardscoil Ris 4-16, Charleville CBS 1-7
DLS Waterford 1-18, Blackwater CS 0-16 (aet)
CBC Cork 3-18, St Francis College Rochestown 3-12
Midleton CBS 1-15, SNTN Doon 1-12