Fighting is a combination of strength and skill, which has little to do with height. You said he could easily Bai Wan his arm, but you couldn't break it at all, which shows that you are far behind him in strength. As for skills, you didn't say anything. I can only guess that neither of you has received professional fighting skills training. So in general, if you have an open and equal one-on-one contest with him, you are probably no match for him. In addition, of course, under the premise of not being open and unequal, it's hard to say whether you can beat him (for example, you sneak up on the other side, armed with your bare hands, and so on). )