115 lb female UFC fighter vs untrained male opponent (video)
Michelle Waterson was the former Invicta champion. Dude wasn't allowed to hit back. Kind of displays the vast disparity between a smaller female trying to take on a larger male.
He wears headgear, but it doesn't look like he would have even needed it. Strikes by a small female just aren't very effective against a big male.
Now imagine if the dude had been allowed to hit back. It's not hard to see that this wouldn't be much of a contest. Even if she was 15 lbs heavier. And that guy isn't even very big.