[ColoCdn]

The best of human endeavor in a 26 mile marathon is a little over 2 hours. An ostrich has been clocked at 45 mph over twenty minutes= 15 miles. It would take the human 1 hour at a world class marathon runner's pace to catch up to the ostrich if it stopped and stood still for an hour or so.

The odds of human success? About the same as the Dolphins chance of winning the Super Bowl.

About the pronghorn antelope: don't know the endurance, mileage wise. I'll try to find out.

[Frumious Bandersnatch]

A well-conditioned human can do 70+ miles in a day. There have been many documented cases of humans doing exactly this during the 1800s. As far as the Tarahumaras are concerned, claims have been made that they can run 100+ miles per day for days on end.

Don't confuse short-distance speed (which is not a human forte) for long distance endurance. Humans are capable of running and walking pretty much indefinately with a modicum of rest. Basically, a night's sleep is all that is needed for a human (in good condition) to fully recuperate.

There is no other land based animal of which I am aware that has the endurance of humans.