What are the major differences between full and half marathon training? I want to train specifically for a half in October, and keep my mileage high enough to start training for Boston 06 in November. This year I want to up my mileage for the marathon, I was thinking about jumping up to Pfitzs 18/70. Any advice on a plan for the half that keeps the mileage high enough to be ready to start that Pfitz schedule.
I was thinking about getting Road racing for serious Runners, but i kind of dont want to spend the money, is it worth it? Could I just modify one of his marathon plans for the half? If so, what modifications should I make?