In order to start this 16-week marathon training program, it is recommended that you first build a base of at least 25 miles of cardiovascular endurance training. Without a sufficient milage base to start this program, you increase your risk of injury.

If you have built up your 25 mile a week base, then your ready to start training for the big boy - the marathon. Durring this 16 -week marathon program you'll not only build upon your base milage, but you'll also increase the number of farleks, thresholds, intervals, hills and strides speed and endurance exercises in your cardiovascular endurance program.

If you haven't already, you should start a runners training log. It's a great place to record your race times so you can see the steady improvements that you are making making.