The Great Britain team had a successful day, with AIBA Women's World silver medalist Lisa Whiteside leading the way after edging through against Morocco's Zohra Ez-Zahraoui in their flyweight bout.
India’s five-time AIBA Women's World Champion Mary Kom was too strong for Venezuela's former AMBC American Women's Champion Karlha Magliocco and advanced to the semi-finals of the flyweight along with Estelle Mossely of France, after the lightweight defeated Mexico's AMBC American Women's Champion Victoria Torres.
In the men’s competition, Morocco’s current AIBA World Champion and WSB star Mohammed Rabii dug deep to beat his closest rival Araik Marutjan of Germany in an explosive welterweight match.
Uzbekistan's Hasanboy Dusmatov dominated his bout with Venezuela's Angelino Cordova in the flyweight category and Wuttichai Masuk - Thailand’s great hope for boxing gold having already qualified for Rio 2016 – was equally convincing against Swaziland’s Thabiso Dlamini.
Great Britain's Galal Yafai and Luke McCormack both progressed, while the Netherlands’ Peter Mullenberg looked in good form against another unlucky Venezuelan, Argenis Espana.
"I won each round in my opening bout and felt I dominated the contest without any trouble. I boxed from my own distance and tried to land clear punches, so I am still fresh, injury-free and looking forward my next contest," said the Netherlands’ EUBC silver medalist afterwards