Okay, I know that I only chose a mini and not a real full length marathon, but I did run all 13.1 miles without stopping and did come to the conclusion that you really can not compare the two (in my opinion) because one is flat and the other verticle (and has altitude involved). At mile 11, I would have to say my legs were hurting like they did around 21,000 feet.
So, as far as I am concerned...you can't compare the two (directly) and both types of ATHELETS that climb and run should be commended and are both ENDORANCE activities.
I am ready to climb something! Can't wait until Summit for Heroes!
Troy