Ballinteer St John's produced a disciplined defensive display as they accounted for St Brigid's by 0-9 to 0-8 in their Dublin U21 'B' Football Championship quarter-final at Russell Park last Saturday.
The visitors enjoyed the bulk of possession in the opening half but, despite creating a number of goal-scoring opportunities, couldn't find a way past Eoin Lysaght, who was in inspired form between the sticks for Brigid's.
However, points from Fearghal Duffy and dual player Glenn Whelan helped Ballinteer into a 0-7 to 0-3 interval lead with the hosts left to rue a missed penalty from the normally reliable Philly Ryan shortly before the break.
Brigid's improved upon the restart with Michael Ebbs, Ross Cunningham, Dara Doyle and midfielder Gerry Troy all featuring prominently and reduced the arrears to a point with five minutes remaining.
The Marley Park men, who were best served over the hour by Dublin minor Donal Gormley, Duffy, Aodhán Clabby, Sam Tully and Stephen Fitzsimons, regrouped well with Duffy kicking his sixth point of the afternoon to ensure his side's progress.
There was another away win at River Valley as Raheny eased to a comprehensive 4-12 to 0-5 victory over St Finian's Swords with Eoin Gillen striking two goals.
Raheny, without their senior players who are preparing for the AFL2 promotion play-off on Sunday, used Simon Deignan to great effect at full-forward while midfielder CJ Heapes, Shane Homan and centre-back Mick Grenham impressed for the visitors.
St Oliver Plunkett's/Eoghan Ruadh pulled clear after the interval to record a hard-earned 0-10 to 0-5 victory over Fingal Ravens at Martin Savage Park.
Goalkeeper Dillon Burke, Sean O'Connor, Cian Harrison and Peter Corcoran all shone defensively for the hosts, with the introduction of Dublin minor Niall Walsh and points from Daniel Stritch pivotal in their improved second-half showing.
The semi-final draw sees Raheny face Thomas Davis with Ballinteer and St Oliver Plunkett's clashing in the other last-four fixture.
U21 'B' FC: St Brigid's 0-8 Ballinteer St John's 0-9; St Oliver Plunkett's/ER 0-10 Fingal Ravens 0-5; St Finian's Swords 0-5 Raheny 4-12.