PLUS: Hal Higdon's 2nd-Time Marathon--4 weeks: This is one of several programs designed for runners planning to do two or more marathons with minimum rest between. This is my 2nd-Time Program for runners with four weeks between their marathons. I also have interactive programs online for those whose marathons are 2-8 weeks between marathons. Be sure you pick the right program. Each day I will send you an email telling you what to run and offering training tips. For more information, visit my website at halhigdon.com.