Scoil Eoin's late arrival failed to hinder Newpark whose two second-half tries saw them through to the semi-finals yesterday.
Scoil Eoin got off to the better start and a fine break by centre Brian Behan set up Aaron Cuddy for a score under the posts.
Newpark struck after the break when captain Jason Lowe accelerated down the right before cutting in under the posts. Replacement Daniel Conran put Newpark in front 10 minutes later as he sprinted away to score by the posts.
SCORERS: Newpark - J Lowe try, 2 cons; D Conran, try; Scoil Eoin - A Cuddy try; D O'Brien con.
SCOIL EOIN: E Farrell; B Hennessy, B Behan, A Cuddy, P Dunne; D Lawlor, M Beever; D Barry, S Smyth, D Tynan, K Hyland, K O'Toole, C Curtis, D O'Brien, B Cardiff.
NEWPARK: P Tormey; N Murphy, J Lowe, K Locke, T Evans; J Donahue, F Cullen; L Ireland, J Doran, J Robertson, F McGuirk, B O'Shea, D Conran, B Murphy, T McDonald. Replacement: R Court for Locke.
Referee: A Dempsey (Leinster).