Notes
Walked/ran uphill at 9% except for a few warmups walk at 2.7/27%. 2640' uphill in 53 minutes, 4.2 miles or so.
Tried to keep heart rate above 145-150. Did a final sprint at 162, 9%, 8.0 mph. Mostly ran 1/4's at 6.5mph, 9%.
2640' elevation gained.