So today. Yes, I was sore, but I decided not to whine at myself over it and push myself. It seems to have worked out well. In fact, I totally surprised myself in the first three miles.

Splits
Mile 1: 8:26.05
Mile 2: 8:15.92
Mile 3: 8:21.99
Mile 4: 8:56.66
Mile 5: 8:59.55
Mile 6: 9:13.67
.20 mi: 1:49.77
Time: 54:03.61, 8:43/mi pace, 780 calories burned.
I'm happy with today's run, although I suppose it might have been better to have flipped the whole thing, with the slower miles first and fast ones later. Still, looking at the chart I would have PR'ed had I been running a 5k.
I even got cheered on by a 16-year-old girl. Why couldn't I have been cheered on when I was 16? Oh well.