As a matter of fact rio let's do some math here. If say this saluki could run 40 mph for 3 miles. That means that he would be doing them three mile in say very close to 4 minutes and 30 second averaging like you said 40 mph. That is some feat when we consider that this dog just took approx the same amount of time to catch that hare which was about 4 minutes and 20 seconds and anybody on here with any sense is absolutely amazed at his performance. And.....at the very most throughout the entire run he is probably averaing now say 25 to 30 mph with all the stop, turns, twists, and whatever.