he isn't talking about running 100 miles a week, how many of us can get anywhere near that!!!! Just an assumption but Im guessing probably less than half that mileage would be a better shout. If someone runs a light 25-30 mile a week, then you might as well wait a few days till the legs are recovered and then really cane the 10miles, like a tempo or fartlek. Anyway none of us are sports scientists, and I don't think even the most renowned sports people have a water tight answer, its all a bit open to conjecture
