Crawford vs thurman who will win?

Sorry about the mistake. I am so looking forward to the Crawford vs Postol fight that I thought I was picking the winner of that fight. After reading the question again I see this is about Thurman vs Crawford. Thurman is a big welterweight while Crawford fought at 135 not long ago. Thurman is a much bigger fighter. I don't see how Crawford could beat him. Thurman is a clever boxer and a big puncher at 147 so I think he has the edge on Crawford in every way. He probably hits harder and he takes a punch better. He is taller with a longer reach and he is just as fast. I think he is a smarter and more controlled boxer than Crawford. I think Thurman would figure Crawford out and knock him out.

Crawford is a 5 to 1 betting favorite but Postol has a KO win over Matthysse and he is the only fighter to do that. Matthysse is better than anyone Crawford has fought.Crawford and Postol are both very good fighters with fast accurate combinations. Crawford is a big puncher with both hands but he was hurt by Gamboa while Crawford was not hurt by the harder punching Matthysse. I think Postol will score an upset win but I am not at all sure about it.

Crawford is yet to beat anybody in the top 20 at 140. He's lost rounds against guys like Dulorme and Lundy. I need to see him fight a credible opponent first, which of course Postol is. Lets see how he copes. Thurman would take Crawford out, probably early. I'm not sure Crawford would beat anyone in the top 10 at welter, maybe Vargas but tbh I've only got him in the top 10 cos he's got a belt.