I fought a guy like that and beat him 100-91, 100-91, 100-90. He was shorter, but all you have to do is go in and jab to the body and step back out. Eventually they will have to come straight at you because they are so far behind on points. I held the guy to 22% connect. I will admit that hitting his head was hard, but still at the end of the fight, his eye was cut and his nose was a bloody mess so I was getting through plenty.