I can't explain it but people taller than 6'5"ish do not scare me...
He could never catch me anyway... He'd get exhausted in minutes...
Exactly. Just keep running away. He chases. Run a little more. Do this for hours on end or as long as you need it to take. Straight out of the Gray Wolf playbook. Oftentimes they will force their prey to chase after them, knowing that they are weakening and weakening in the process by using up energy they don't have. When they see their prey has tired enough, opportunity comes and the next meal is had.
Applying that to someone who obviously will tire is a good plan. What would he do if you kept about 30 yards from him at all times. Not only would he be confused, he would tire. He would also begin to question his sanity at this point. He would have no idea what to expect or when to expect it. He may even just give up which would make you the victor without even fighting.
Many ways to win a battle.