A comfortable victory for Foyle and Londonderry College who now, even with a home draw, face a difficult fourth round tie against Regent House.
This was sweet revenge for the home side as Dalriada defeated them earlier in the season.
Foyle took the lead after 28 minutes when scrum-half Simon Logue weaved through the defence to touch down under the posts. Full-back David Murdock converted.
Ten minutes later Murdock added a difficult penalty from 35 metres. Foyle were starting to dictate the pattern of play at this stage and they took a 17-0 interval advantage with a John Burns try. The ball came to out-half Graeme McCarter who found Burns at his shoulder and the burly flanker crashed over.
Dalriada had the breeze advantage in the second half, but their forwards were outplayed and there was little possession for their backs to use. Foyle kept control with Burns to the fore.
Midway through the second half the visitors did manage a try from substitute centre Tom Skelton which Lee Ballantine converted.
But the fightback never materialised as the home side continued to keep Dalriada under control.
With their forwards dominating they kept possession for the majority of the time and with 10 minutes to go Murdock added another penalty.
The Foyle coach Gerald McCarter was happy with the win. “We managed to close them down, keeping possession in the pack. They were given very few chances,” he stated.
Peter Davidson, the Dalriada coach, observed: “At half-time I felt we were missing too many first time tackles and we were also giving their forwards too much room. Unfortunately we were unable to alter the situation in the second half.”
Foyle and Londonderry College: D.Murdock, A.Wilson, D.Graham, N.Donnell, P.Blennerhassett, G.McCarter, S.Logue, J.Brady, A.Smyth, R.Mullen, P.Warnock, K.Miller, T.Burns, A.Patterson, J.Burns (capt).
Dalriada School: S.Currie, L.Ballentine, J.McLaughlin, C.McCartney (sub T.Skelton), J.McMullan, B.Henderson, B.Parke, K.McAneaney, C.Montgomery, G.Brown, J.Peoples, R.Bonnar, P.Eakin, T.J.McCaw (capt), M.Allen.