Five weeks ago I ran my all time furthest. I thought at the time that I was golden, and that adding on a little more mileage would be easier than first anticipated, because I was so far ahead in my training. Just keep the long runs at a +5% / -5% of my previous long run, and increase accordingly.
It seemed like a good plan at the time, but as in life sometimes plans change at the very last moment, and mine seems to have done that.
After taking two weeks off, I got back out to do a long run. I was shooting for 22 miles. I had it all mapped out, and figured that my run would go all the way from Oak Cliff, through downtown Dallas, up the Katy Trail, and into the SMU campus; at that point I would turn back and run home.
The best-laid plans of mice and men often go awry.
If I Can U Can 