I have my doubts, to be honest. A human kick to a dinosaur of Hyp's size might not do a lot of damage, especially considering the thick skin and lightly thick muscle underneath it. This is where aiming at weak points comes in handy. This is just a guess, but Hyp's weak point would be his legs. Although I don't think it would cause anymore damage than pain and bruising.
Now as for Hyp running away from a battle stance, I don't see the logic in that. One kick is not going to make Hyp afraid, in my opinion, because not much damage would have been dealt (unless, of course, the kicker has taken martial arts of some kind and learned how to inflict more damage). For Hyp to run away, a lot more, in my opinion, would have to be done. If he was nearly killed, for instance, he'd see a reason to run away. Or if the human posed like a sharptooth, that might make him run away because of instinct.
I don't mean to offend you and I apologize if I did. I'm just trying to look at this in a logical manner. I've seen many programs on dinosaurs, read books on dinosaurs, so I'm using that knowledge to make my own guess on whether or not something is possible in regards to human/dinosaur conflict.
I agree with Serris. Hyp would be the easiest to beat, but even then it would be tough without a gun. Mutt's species were much larger and heavier, likely more physically strong as well. And Nod has armor and spikes protecting him.