Notes
Very difficult hilly trail run. Finished fast. Might be my highest average heart rate of this length.
Splits:
8:53, 140bpm
8:40, 159bpm (mostly uphill)
8:37, 154bpm
8:17, 158bpm
8:59, 166bpm (more uphill)
9:26, 165bpm (trail hills)
9:04, 160bpm
7:28, 167bpm (ouch...)