by former Olympian Jeff Galloway recommends that not only beginners, but also faster marathon runners, run just three to four days a week. Weekly mileage peaks at 31 to 41 miles, depending on your goal time. Galloway reports that 99 per cent of his plan
long runs that exceed three and a half hours, because they are too debilitating physically. The only time when it's better to train by distance is when you're doing speedwork on the track. Do a dress rehearsal Treat one of your longest runs
