I was in a discussion recently about Rhonda Rousey. We were debating whether or not she could beat a man in a fight. Now I'm purely discussing the theory of her fighting a man about the same size as her with an equal amount of training. Obviously she'd obliterate a normal man in a fight, but get destroyed herself by someone like Tyson who outweighed her by 100 pounds. I've done martial arts for 20 years, both upright sparring and grappling. In terms of pure fighting, there is little advantage to being male. While men tend to be significantly stronger, the amount of leverage used in martial arts quickly nullifies that. The styles I've done and taught tend to be about fighting with intelligence, in which I've determined that men and women are on essentially a level playing field in that respect. Boxing is different than a street fight or self defense because both sides are well trained I maintain that the physical advantages of being male would make her a significant underdog, but it got me wondering how great the advantage would really be? Men can easily out benchpress any women of similar size and physique, but boxing is about fast twitch muscles, not slow ones. How much stronger are those? Women tend not to be able to break as many boards/cinder blocks as their male counterparts, but I wonder how much of that is bias based on my particular students just being timid and holding back, men tend to be more brutish and simply try and then get used to bigger breaks. I've seen female masters break just as much as I can, but then again, I've watched male masters break significantly more than I can. I know that reaction time in men is also slightly faster than women's on average, does this advantage increase or decrease as training increases? In self defense, there is little difference because the reaction time of a trained person will always be better than someone not. In upright sparing, I'd hesitate to judge because my students and fellow students never had the level of training of a professional, their skill levels aren't as close as two professionals. Are there any other major differences for either side when it comes to out ability to box?