If you need fighting advice from guys on a video game website then I think your in bad shape haha. Anyways, your best strategy is one you've already picked. He's fat and out of shape, he won't last long. Good foot work with different angles should work well for you. Just don't get knocked out. I would say if you have any wrestling experience you could try a single leg take down, which could prove to be very effective if you can mount him.

Hahahahaha, this rmeinds me of my highschool days. Fortunately you should be done with these stupid fights once you go to uni and the working world, although you never know when you might come across a man-child who needs to prove something to noone. Also, watch out what your oponent is thinking. Hitting the groin might not be dishonorable for him, and you'll get his foot straight to your gnats ending the fight right there. Also, make sure this kid isn't nuts and bringing a knife or some weapon with him, you don't want to get maimed or worse die for a stupid fight. Also, make sure its a fair one and he isn't bringing a posse that's gonna beat your ass to a bloody pulp.

Now for the fight itself, i got in a fight with a kid that was heavier than me in highschool and it ended rather fast by punching him in the nose and then once to the side of the head knocking him to the floor. Punching the nose will have his eyes well up with tears (not cause he's crying but cause it is a natural body reaction) which will impair his vision, once the blood starts flowing he will lose his ego as well, and there is a chance he will cover his face for protection or to hold his nose so he is not attacking and this is when you make sure you land that last punch to knock him down to the floor before he gains his senses and gets his footing back to come back at you.

So basically, since this kid is fat, do not waste time punching his body, between his extra layers and your undeveloped upper body strength, he will absorb your hits and retaliate against you and hurt you. Go straight for the face and head to break his will.

If you are not good with kicking, then forget that, if you kick him like a wuss and he grabs your leg its fuckin over.

So in bullet-point form:

1. Avoid him/dance around to confuse him

2. Take advantage of the first opening and lay your fist right through that bastard's face

3. Once you land that critical blow - DO NOT STOP HITTING HIM - land as many punches as you need on his face and head until he drops (this is critical as it is the fight ender, if you stop after your first hit you will give him the chance to regain composure and become full of rage, his adrenaline spikes and can overpower you)

4. If he doesn't surrender when he is down, and wants to get back up to fight you, thats when you can start kicking him when he is down

Finally, make sure you dont break a finger or knuckle when throwing your fists around. I knew a guy who punched someone while tucking his thumb into his fist and broke his thumb. Don't be an idiot like him.

Good luck man, I am curious to the outcome, and rooting for you if that guy did you wrong.

I don't know about you, but when I fight, I don't really punch or kick. I try to restrain them on the ground through grappling and careful choking. I just hate getting someone elses blood on me and this way, no one really gets hurt unless you are douche and attack them while you are on top or if they attack you if they are on top. Wrestling>Boxing

only target his face any where else is a waist of energy
i won a lot of my fights that way swing for jaw and temple, a good temple blow will stun him good.
p.s record the fight

u-u-d-d-l-r-l-r-b-a right before you start.

It's pretty much the only helpful post in this thread. You could be a black belt but when you get into a real street fight for the first time you could freeze. I got punched in the back of the head this weekend and before I knew what was really happening I had the guy in the air about to land on his head. I could have easily just have froze and let him hit me repeatedly. Everything changes when you are figthing for real.

If he gets you to the floor and starts hammering on you, your doomed

:P