In boxing, movement is just as important as any punches you learn to throw. Head movement is especially important to train. One guy in this street fight seems to know a slip left or right can make the difference in who is knocked out. Simple head movements protect him from hits many times, and keep Guy 2 off balance.
Thanks to his head movements and slips, Guy 2 is not able to land a solid punch. Meanwhile, as Guy 2 tries to recover from the momentum of that missed punch, Guy 1 is able to land jabs and crosses. At one point he even manages to take Guy 2 to the ground. The video doesn’t seem to show the end of the fight, but Guy 1 seems like he’s just getting started.