After running for about 7 8 years, most of them on trail, last year I came down from the mountains and started running marathons. At first, i was just pushing it to the limit, and had no interval mp, or tempo trainings in my prep weeks. This year, I wanted to do things more seriously and purchased the plan. The endurance is there, the stamina as well, I purchased the plan to get me some speed on longer distances. I have finished ultras with 70k under my feet but boy, that marathon last year took it out of me. My heart rate was 188 throughout the entire race. I m loving the plan and I m really focusing on improving my speed and doing at least 1 interval session a week and 1 tempo session a week. I can run long distances every day with the km I have per week but, it is time to improve. Also, i didn't take rest days at all and now, I listen to Ben and try to get 1 to 2 days a week and still hit my km per week goal. I'm only on week two but, can't wat to see how my time improves on the next marathon which is 23th March.