Strategy for a Century, Part 4

My fourth strategy tip for a century ride is to: ride the second 50 miles faster than the first 50.

Said in another way, this means: don't start off too fast, waste your energy, then dog it the last half of the ride.

I've seen what can happen when a person goes out too fast and then fades at the end, and it's not good. I want to make sure I have something left for the second part of the ride.