It guarantees Blumenfeld, now 20, at least a silver medal and the prospect of gold when he faces Namibia's Jonas Jonas in Saturday's final.
Reflecting on how he began the long journey to a Commonwealth medal, Blumenfeld said: "My dad had always talked about how he used to be a boxer and loved the sport. "When I was eight years old I was going around the house and I found a pair of gloves. "I said to him, 'I want to box.'"
Blumenfeld, who has lived in several places, including New York, but opted to represent Canada, said he had always been desperate to emulate his father, Bob, in whatever he did.
"I didn't really think about boxing, I wanted to think more about following in my dad's footsteps.
"It could have been anything, it could have been playing ping-pong or tennis, and I would have been like, 'I want do that.'
"He was the inspiration for my sport, my dad."
Blumenfeld's father, whose amateur boxing career ended prematurely because of a broken hand, is not in Australia and is instead back home watching on television.
"Me and my dad always talk and he gives me advice. He's my number one supporter," he said.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)