If you were in a very large featureless field that stretched for 1 km in each direction, and you and a very skittish cat where at the centre of it, do you think you would be able to chase down the cat and catch it? They can run very fast at short distances but I wonder how it things would work out in such an environment with longer distances? if you like you can substitute the cat for a hare or other small and fast animal that you wouldn't expect to catch by hand.