Notes
I felt reasonably good, and set out to establish a 17-mile pace. Weather was chilly but the sun was cheering. Around mile five, my glutes and lower back were feeling tight, and I actually had some occasional spasms from there on. Not show stoppers, but a touch worrisome. Went off course briefly for fluid control at the MoPac trailhead. The 84th Street stretch was fairly unpleasant, as I had expected, due to traffic. Post-run, feeling pretty good.
Added 0.24 miles to default distance because of MoPac and north shore detours.