Martin Ward progressed to the quarter-finals of the European Amateur Championships in Ankara with a convincing win against Russia's Ildar Vaganov.
The lightweight again showed genuine London 2012 potential with a 16-10 win against his stubborn opponent.
Ward will take his place in the last eight with six other British boxers.
Another prospect, super-heavyweight Anthony Joshua, forced two standing counts in his defeat of veteran Irishman Cathal McMonagle 22-10.
Commonwealth lightweight gold medallist Thomas Stalker saw off Ukrainian Oleksandr Klyuchko 19-14, while former bantamweight champion Luke Campbell secured a walkover against Sweden's Bashir Hassan. Campbell now faces home favourite Furkan Memis.
"You have to take the walkover when it happens so I should be fresh for the next bout," said Campbell. "It's against the Turk on home soil but I'm confident I can do the business."
Welsh welterweight Fred Evans and flyweight Andrew Selby, and London light-flyweight Charlie Edwards also have quarter-final bouts on Tuesday, after winning their respective last-16 fights on Sunday.
Scottish lightweight Josh Taylor put up a tenacious fight against Italy's world champion Domenico Valentino before falling 13-11, while London light-heavyweight Obed Mbwakongo and Welsh lightweight Zack Davies were both stopped.