Big man vs female boxer, who is better in actual combat?

Which is more powerful in actual combat can only be judged under certain conditions. For example, men just exercise and don't know how to play; The woman practices fighting and has actual combat experience. In this case, although the strong fitness man punches and kicks with unusual strength, the woman will dodge, look for opportunities to attack his key points within the scope permitted by the rules, and attack his scoring position without the rules.

Under the above conditions, the assumptions of both sides' body, gender and skills will be used in actual combat, which is "bullish" in a word of traditional martial arts. That is to say, in actual combat, a big man vs a female boxer, and this woman is more powerful than the man.