Belfast's Olympic medallists Paddy Barnes and Michael Conlan were both among the semi-final winners at the Irish Amateur Championships in Dublin on Friday night.
Barnes earned a unanimous win over battling Derryman Blaine Dobbins at light-fly with Conlan also earning a dominant win over Cork man Barry Walsh.
Barnes will face holder Hughie Myers in the light-fly final.
Myers beat Cairn Lodge's Thomas Waite in the other light-fly semi-final.
Conlan will face Holy Family's Tyrone McCullagh in the bantamweight decider after the later's split-decision win over Kurt Walker on Friday night.
Holy Trinity's Sean McComb will face David Oliver Joyce in the featherweight decider after he earned a unanimous win over Keith Flavin of Paulstown.
Those beaten on Friday night included 2011 European light-welterweight champion Ray Moylette.
The Mayo man was beaten by a split decision by Portlaoise fighter Michael Nevin.
A number of other Ulster fighters will be in action in Saturday's semi-finals at the National Stadium.