Check out this dude. He has around 9 more hours to go on the treadmill and just hit 91 miles:
To kick off the national launch of Accelerade, Dean Karnazes will aim high. On June 21, his goal will be to break the world record for a 24-hour distance run on a treadmill (currently set at 153.76 miles) as well as to raise awareness for Athletes for a Cure, an organization dedicated to finding a cure for prostate cancer. The treadmill will be located on a platform attached to the Reuters building in Times Square.
He’s currently on pace for 156 miles, so world record pace.