Jason Quigley assured Ireland of at least a second bronze medal at the European Under-23 Championships in Russia today.
But 2009 Irish Elite champion Declan Geraghty was beaten 17-7 by Russia's Vladimir Nikitin in the bantamweight quarter-final in Kaliningrad, while Mark O'Hara also bowed out.
Quigley, boxing in the middleweight class, earned a 12-9 last-eight decision over durable Moldovan Victor Carapchevschii to join his Irish team-mate Hugh Myres in Monday's semi-finals.
The 2009 European Youth champion will now face Russia's Maksim Timofeev in 48 hours.
Earlier, Hugh Myres secured a minimum broneze medal at the following an impressive quarter-final win over Ory Georges.
The Ryston BC light-flyweight, who ran two-time Olympic medallist Paddy Barnes close in the 2012 Irish Elite final, won all three rounds to post a 17-10 win over the French southpaw at the Sports Palace in Kaliningrad.
He'll now meet Israel's David Albrdian in the 49kg semi-final on Monday.
Kildare heavyweight Christy Joyce and Dublin welterweight Thurles Moran bowed out.
Joyce was stopped in round two by Gevory Manukyn of the Ukraine and Moran dropped a narrow 12-9 decision to Pavel Kostromin of Belarus.
Sunday is a rest day at the tournament.
The semi-finals and finals will be held on Monday and Tuesday.