Actually, the two guys I trained with most, who both ran faster than me (2:19 and 2:20..I was two minutes slower than them) did the same as I did. I guess what we feel we never did was embellish our workouts and probably rounded down our mileage. Which would amount to no more than 3-4 miles a week on the strong side. I can say that due to other commitments in life (kids,wife, job etc…) we tried to get everything out of what mileage we did. We did have some high mileage weeks. I think I have gone over 100 three times in my life but it was not intentional and at the end of that particular year, which was my highest ever, I think I was around 3500-3600 for the year. I actually think what helped me run fast times was due to the fact that I had 15 years straight of 2700-3000 miles and that gave me a strong base to quickly peak off of. On a side not, I am still struggling with my Hypothyroidism. They found that I have Hashimoto's disease and it needs to run its course. The doctor is still playing with my dosage trying to find the correct level of the hormone. Most symptoms are gone so it is improving and I will be back running soon(I hope) Also, I am not trying to argue, just pointing out that goals can reached taking many paths and someone running 50-60 a week is just as much a marathoner as one who runs double that or more. I hope I am not offending anyone. If so I apologize.