I was checking out Zerafa tonight and he's lost every fight outside of Australia. In this case it wouldn't matter where they fought. Even though he is the smaller man, prime Quartey would knock out Pretty Boy inside of six rounds.
Ike Quartey fought almost his entire career at welterweight and had only a handful of fights at 154 and 160. With that said, Ike was levels better than Zerafa and I think would still beat the crap out of Zerafa despite the weight difference. I'm assuming we are talking about a fight at 154 since Zerafa didn't compete at 147.
These threads make me laugh. Ike Quartey destroys him. He wouldn’t have even boxed him, a totally different level. Maybe used him for sparring.