WINNING MEANS BEING AN MULTI-MMA EXPERT
Street fighting is not considered fair fighting because it does not follow the rules of any martial arts. Nothing can be done to stop it if the fight goes out of control. The opponent can do anything to hurt you and drive you out of the fight. No martial arts program teaches how to save yourself and attack in a street fight.
Who can fight well in a street fighting situation?
The training of martial arts can be useful against those opponents who follow rules but what do you do against those opponents who will do anything to put you down? It's a good idea to have the knowledge of the basic moves of multiple martial arts styles and apply a move whenever it is required. It means punch like a boxer when the opponent is hard to beat and put locks of Judo on when you want to finish a fight in less time.
It will be difficult to defeat a martial art expert if he knows how to put you in a judo lock, if he has the blaster power in his punches like a boxer, if he can kick high like a tae kwon do expert, and if he is as fast as a Kung Fu expert. If an expert has the knowledge and practice of the multiple martial arts styles such as Judo, Boxing, Tae kwon do, and Kung Fu etc then he will be impossible to beat by any trick and technique. So such a martial arts expert can very fight with his opponents in the street fighting.
Becoming an expert in the multiple martial arts styles is not easy because each style is a different subject and requires years of hard work and dedication to master but gaining and practicing the knowledge of the basic moves of multiple styles is not impossible. You can learn and practice the basic moves of different styles and become dedicated to the one that you like most.