The average bite pressure for a wolf is 600 psi. A German Shepard is the most popular and commonly used police assist attack dog. It's bite pressure is only 200 psi. almost 99% of the time, the German Shepard whoops ass over various criminal assailants who often times have weapons.
A wolf's bite can break bones and rip connective tissues. A wolf is a natural born killer and predator with instinctual fighting abilities.
A human without a weapon is a wet paper sack. Only way I see a human beating a wolf is if that human has a lot of experience fighting wolves, and has trained for it. Which brings our only natural weapon into play: out brains.