Ryan Reynolds, Edward Norton and more celebrity marathon runners


Talk about pounding the pavement!

Running a marathon is certainly a big endeavor, but somehow these A-list celebs have found time in their busy schedule to take on training for a strenuous 26.2-mile run.

Not only have some of these celebs trained for the big feat, they've also stood out for their serious athletic prowess. Ryan Reynolds and Edward Norton both completed the New York City Marathon in less than four hours.

Sexy actors aren't the only ones who can keep a quick pace. President George W. Bush hotfooted it across the finish line in the 1993 Houston Marathon faster than both of the big stars above with a nice time of 3 hours and 44 minutes.

In honor of the New York City marathon on Sunday, check out some of the famous faces who've take on some of the biggest foot races in the world.