Originally Posted by Comatose51
You know it's funny. All of us here think running is harder. But I have a friend who's a runner who've done marathons, etc. He did a 50+ mile ride with me once to train for his triathlon. After we were done, he told me that he felt like he had just ran a marathon. I personally think running is more difficult but that's because I'm a cyclist. So keep that in mind.
Exactly. If you don't train as a runner, you're gonna think a marathon is a lot harder than a century. Similarly, most runners won't be able to hop on a bike and do a century easily either.
I think a marathon is comparable to a century.