Swithing Monday and Saturday workouts on Pfitz 18/70?

I did Pfitz 18/70 in the past and switched some Saturday and Monday rest days due to family commitments on Saturdays. While few marathon build-ups go flawlessly, I would say it worked out fine for me in the end.

For me the toughest part of Pfitz 18/70 was the medium long runs (12-14) on Wednesdays, my legs felt totally dead the last few miles of those, significantly worse than on Sunday long runs. Switching the rest days may have contributed to that. Just go really easy on your recovery days, whenever you do them.

3:10 sounds like a reasonable (i.e. conservative) goal for a first marathon. If you can do the 18/70 plan, then you can probably go faster than 3:10 with a marathon or two under your belt.

Thanks, that was exactly what I was hoping/expecting to hear. Every training plan needs to be flexible but I just wanted to make sure I wasn't messing with any important microcycles or anything. I have noticed that if I don't do an easy run the day after a hard workout or race I don't recover as quickly. I guess we'll see how it works out.

I agree, 3:10 is prob a bit conservative but I've never gone over 16 miles in training and I started seriously running again less than a year ago. Plus, I always here horror stories about people going out too aggressive and crash at the end. If my training is going well I'll adjust my goal from there.

Did you actually read the book?

He says in it that he didnt want to put schedules on for this exact reason (people thinking you should follow them exactly) but that he had too because people cry if not told what to do on every day.