First off thanks for distilling your years of experience into an entertaining, informative and accessible book. I got a copy of Training for the Uphill Athlete this summer while training for my first marathon and immediately saw flaws in the training program I’d been using. I’ve been able to integrate the concepts outlined in your book for the past month and a half and feel that I’ll be much better prepared for my race than if I’d continued the program I began with.

I had a quick question about doing back to back long runs during a Specificity week. When doing back to back long runs is it better to for the runs to be of equal distance or for the first run to be longer? Does it make any difference at all as long as you get in the 60-80% of your weekly volume during these runs?

Thanks in advance for any advice you can offer and thanks again for authoring such a complete training manual.