So I am preparing for my first marathon, and while I have a series of great coaches behind me, including my father, who is a Pan American Gold Medalist, not one of them have much experience with runners who are over 185 lbs. At the moment I weigh 203 lbs. at 9% BF. I am a follower of James Fixx, author of 'The Complete Book of Running' and understand that I am not at the ideal size for running. Even when I raced internationally for track & field and cross country, I knew that weighing 165 lbs. was not the best idea for a distance runner, though I did very little to control this. I am curious if any of you have experience running marathons or even half-marathons as a plus sized runner, anything over 180. I put in 90+ miles a week, but I have yet to run the full 26 and bit, and wanted to know if any of you had any tricks that you used. I normally would stick to running threads, except so many runners that post on them tend to be gaunt and strictly run or do that in combination with another sport or sports, like triathlons.