In reply to Lukem6:
Surely you need to compare like with like?
Running 26 miles takes a fit athlete a couple of hours. The last and only time I did one it took me about three and a half. If you are less fit you might take a little longer.
Climbing everest? Starting from the bottom, will surely take a little more than the time it takes to run - or walk a marathon.
So where do they get the idea that a marathon is harder?
I guess this is just another attention grabber that was devised by some editor or copywriter trying to fill a few columns in a paper,