hi could I ask, instead of doing an 18mile ish training run all in one go, could you do several shorter runs 5 to 6 miles each day, does that count? I like to think at the end of the week if your total weekly milage is high then your body will be strong on marathon day yeah. I think some people will do long runs so the body adapts and recovers and gets the benefits from it. it's just I hear that elite runners rarely go past 16miles in training for the day as they can carry themselves through the last 10miles easily on the day. so really what I'm asking is do 5 mile or so runs actually count yeah thanks.