PLUS: Hal Higdon's 2nd-Time Marathon--3 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 three weeks between their marathons. I also have interactive programs for runners doing marathons with 2-8 weeks rest. Make sure you pick the correct program. Each day I will send you an email message telling you what to run and offering training tips. For more information, visit halhigdon.com.