Because running fast is more fun than running slow.
You don't run 26 miles at five minutes a mile on good looks and a secret recipe.
Again, racing for me was about energy management.
I think he had a wake-up call. It's a different kind of race, and I think maybe he didn't take it quite as seriously as he might have, but you can bet he learned a lot of lessons.
Running with others can help get you out when you might otherwise blow it off.
There's always the feeling of getting stronger. I think that's what keeps me going.