You have to know your body. It's part of the beauty of the training process, and once you've determined how much your body and mind can take, you can then begin to reach your potential.

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.

You have to know your body. It's part of the beauty of the training process, and once you've determined how much your body and mind can take, you can then begin to reach your potential.

There's obviously some validity to it. But I think it also points out that you obviously can do it on your own because people have been doing it long before they had the stuff.

Yes, winning the gold medal was undoubtedly the biggest day of my career - mostly because I won the way I had prepared to run it. It was a totally satisfying experience.

Numbers don't lie. You always seem to remember your workouts as being a little better than they were. It's good to go back and review what you do.