I did 4 miles this morning slow as the start of a marathon training plan. I've run 4 marathons before (and a few dozen half marathons) and generally average about 50 miles a week starting this time of year but have never actually trained for any of my runs and my times really reflect that with my lack of consistency or continued improvement. I'm running the Marine Corps Marathon in October and have a goal of 3:35. That's about 15 minutes faster than my PR and judging by how much energy I usually have left after my full and half marathons, I think I can do that if I work on some speed work and practice my pacing. And since the marathon isn't until October, I have plenty of time to train... I hope.