The writer of this article is clueless ...

The writer of this article is clueless ...

The Furnace Creek 508 is one tough bike race. However, Race Across Oregon, about 40 miles longer and much more climbing is even tougher. I know, because my son has participated in both, winning his class in FC, but not finishing RAO. My husband has won his class in RAO. So when they say Race Across Oregon is tougher, I believe them.

I wish the Marathon Des SAbles would stop appearing on lists like this. It is a charity fun walk for overweight city boys. When entering some of the proper hard races like Badwater if you mention the MDS on your running CV you just get laughed at.

You include the 508 but not Race Across Oregon how crazy is that. Race Across Oregon is eight miles longer and has at least 9,000 more feet of climbing then the 508. It is without doubt that Race Across Oregon is the toughest 48 hours in sports.

Yes, what a joke that the Great Divide race is missing but they include the MDs. ha ha ha.

Pity you missed out the alaskanultrasport - that is the Iditarod on either bike or on foot. Unlike the 6633 ( which is a superb) it is almost totally unsupported. The Mds is a walk in the park compared to other races out there - a pity a magazine like National Geographic could not have done some proper research and found that hundreds of people every year do it - some with little or no training. It is certainly not close to the toughest but is probably got the best hype. And yes I have done it.

Awhh Man.. Was hoping to see the Great Divide Mountain Bike Race on here. 2500 mile self-supported mountain bike race seems like it warrants a spot on this.