Just had to provide a run report and say that I broke past the half-marathon distance for the first time yesterday! Not only did I break it, but I accidentally ended up smashing it :-D
You see, the full marathon training plan I'm doing had me set for doing 15 miles, but I hadn't really planned out a detailed route beforehand. I was just going to run around town, along various stretches that I've done before, and keep track of the distance via my iPhone. Unfortunately at one point, I underestimated the distance on a particular loop that I set out on, and that lead towards getting much farther away from my end point than I had expected.
And that's how my 15 mile run became a 17 mile run!!
I certainly didn't intend to go 4 miles beyond my furthest distance ever, and I was definitely feeling more sore than I have in a long time. But it was great to know that now I've only got to increase my distance by 9 miles over the next two months, instead of increasing by 11 miles ;-)
What about the rest of you? Ever accidentally run much more than you intended?