You kick the other New Kid's ass. You can do that by:
•        Completely draining the health of the Enemy New Kid.
•        Having more full health sections than Enemy New Kid.
•        If both players have an equal number of full health sections by the end of the match, it goes into overtime, which lasts for one minute.
•        In overtime, the first player to drain the opponent's New Kid's health section will win. If no one manages to do that in one minute, the game will end in a draw.
Winning a PvP match gets you a shot at the PvP loot screen. You can open three lockers just like in Single Player Mode, even though the rewards in them will be slightly different.