I'm prettysure I just read a paid member say that they could beat Ronda Rousey in a fight with no mma experience. So, right now i'm in bed trying to go to sleep without mentioning what a moron he is while also looking at photos of Ronda Rousey.
But realistically there are alot of guys that could beat up Ronda Rousy without doing MMA. There are just things a female body would not be able to over come. No matter how hard she trains she cant grow a penis. Unless your Cyborg and you drink Steroid Shakes after every workout and before bed. Rumor is she doesnt even have periods anymore.
A big 180-200 pound dude who is in shape could beat up Ronda on physical traits alone. Its unlikely she will be bobbying and weaving the punches if in a street fight and its impossible she will over power him.
If we are talking about a boxing match or letting loose on a boxing bag then thats different and id give Ronda the nudge.