Faoagli stopped Grenada's Andy Andall in round two of his last eight fight to set up his next fight against Tutakitoa-Williams.
Samoan light middleweight Marion Ah Tong was defeated 5-0 on points to his Tanzanian opponent, Kassim Mbunduke, and Niue's Xavier Mata'afa-Ikinofo also lost on points to India's Roshit Tokas.
It was a disappointing night, however, for five other Pacific boxers hoping to win a medal.
