Castleknock College overwhelmed a younger King's Hospital side to reach the Leinster Schools' Senior Cup quarter-finals yesterday.

The winners' superior ball-handling skills were level throughout the game and they led 7-0 at half-time thanks to a Richard Geraghty try, converted by Iain Hopkins.

Castleknock, who last reached the final in 1983, continued to dominate the second half.

Scrum-half Geraghty, centre William Stafford and winger Andrew Lynch all figured prominently before Mark Brennan scored two tries.

Brennan touched down in the corner with the first in the 44th minute despite a good tackle by Niall Flanagan.

Shortly before the end Brendan McGeever set up a promising counter-attack for King's Hospital, but it was stifled by Castleknock's defence.

Scorers: M Brennan 2 tries; R Geraghty try; I Hopkins conversion; P Guckian conversion.

Castleknock: M Brennan; A Lynch, W Stafford (capt), O O'Donovan, C Manning; I Hopkins, R Geraghty; J Lyne, M Lynam-Loane, J McMenamin, N Fanning R McEntee, P Guckian, D Harris, D Grimes. Replacements: L Slye for Geraghty; N O'Brien for Harris; B Donleavy for Fanning; K McCabe for McEntee; O Fegan for McMenamin.

King's Hospital: N Flanagan; R Sheridan, J Wynne, B McGeever (capt), S Rand; A Sullivan, P Caldwell; A Bennett, D Myers, R Milligan, E Wardell, A Trenier, O Ekuma-Nkama, C Hannan, C Ashmore-Butler. Replacements: P Donovan for Hannan; D Stacey for Flanagan; R Leeson for Rand; R Butler for Sheridan; R Keith for Myers.

Referee: S Tracey (Leinster).