SAN FRANCISCO -- Dean Karnazes can't stop running. Once he ran 350 miles without stopping, eating, or sleeping. He's raced on all seven continents and carried the Olympic torch twice. Whether it's ...

SAN FRANCISCO (KGO) -- Dean Karnazes is one of the most famous runners in the world. He's known for running 50 marathons in all 50 states over 50 consecutive days and was named one of Time Magazines ...

At Sunday's Lincoln Marathon, the most famous (and most gleefully masochistic) runner making the trek has to be Dean Karnazes. Also known as the “Ultramarathon Man,” Karnazes has done a lot of insane ...

Maybe Dean Karnazes takes his cue from grade-schoolers. A group of Central Heights Elementary students waiting to race with the ultramarathoner in Billings on Thursday zoomed through their ...