McCallum is competitive, but I don't think it'd be all that close. Ray's handspeed and movement keeps him a step ahead all night, and he had enough pop to keep Mike honest. Let's not forget, McCallum was struggling BIG TIME against the speed of Donald Curry prior to landing that famous left hook. And of course, we saw what Kalambay did to him in their first fight. Speed and movement was problematic for the methodical McCallum. Assuming this is a 15 rounder, I think Ray wins 10-5.