Like a marathon, the better prepared for it, the better you will feel during and after. The ride you describe would not compare to running a marathon in my opinion. My favorite century has over 10,000 feet of climbing and I describe it as harder than a marathon. My husband disagrees. It's all a matter of opinion. Do you have time for the training? As with a marathon, the hard part is the training week after week. The event is the reward. Stacie