What runs faster an alligator or a crocodile?

a croc runs faster than a human

NO. That is one time you are luckyLOL!
Crocs can't outrun humans ... neither can snakes.
Neither do they try ... because being cold-blooded reptiles, and large, most prefer their meat to come to them. If they give chase, they quickly lose their body-heat through loss of internal energy, which can be fatal to them.
Crocs move quicker in the water.