Notes
It was snowing like a bastard today. Must have gotten 4 inches between start and finish of this run. Everything felt good today, except for the fact that I couldn't see because I had to run along squinting. Apparently my HR hit 171, but I can't remember any point in the run where I would have been pushing so hard that this would happen. It must have been up a hill. As usual, towards the end of the run, it was hard to stay under 145. Mile paces and average HRs:
Mile 1: 10:50/140 (mostly downhill, flat)
Mile 2: 10:44/143 (rolling)
Mile 3.1: 10:39/141 (one mile downhill, .1 mile uphill into a flat, 9:41 pace)
Mile 4.1: 13:55/144 (all uphill)
Mile 5.1: 9:57/143 (flat into a downhill)
Mile 6.3: 14:47/143 (flat into a .25 mile steep uphill, 12:20 pace)
Mile 7.3: 11:00/144 (rolling, reverse of mile 2)
Mile 8.3: 10:31/144 (same as mile 2)
Mile 9.3: 11:02/144 (same as mile 8.3)
Mile 10.3: 12:19/144 (reverse of mile 1, mostly uphill and some flat)
My guess is that I hit my 171 during either mile 5.1 or 6.3, although I think it was just an aberration.