PLUS: Hal Higdon's 5-K--Advanced: This is the Advanced 5-K Training Program. Are you ready for it? Only a small percentage of runners have trained hard enough before or have the natural ability to succeed with this plan. If you are a seasoned veteran of the running wars, an individual who has been running for several years and who has run numerous 5-K races and races at other distances, there comes a time when you want to seek maximum performance. Regardless of your age or ability, you would like to run as fast as you possibly can. You want a training program that will challenge you. Here it is! Each day I will send you an email message telling you what to run, also offering tips. For more information and directions, visit my website at halhigdon.com.