Note
It is interesting to compare my Kinsman run to the hike I did with Bgallup three weeks before on Jefferson. On paper, the two hikes were comparable:
Jefferson: 22.33 km, 1637m, 7:20:57, 7:00 moving (Bgallup stats; mine have some missing data)
Kinsmans run: 21.24 km, 1521m, 4:30, 3:48 moving
The "moving" time is a guess on Jefferson, based on ten minutes stopped on the summit and ten minutes stopped at the patch of snow. The comparison has limitations; bgallup and I were out for a pleasant hike, not trying to set some time or pace goal. We also got lost once when the trail disappeared. A more reasonable estimate of our time at pace is probably 6:30.
The routes are also necessarily different. The hike up Jefferson consisted of an ascending phase and a descending phase; on the Kinsman ridge with the Cannon Balls, there were numerous ups and downs. Still, it's illuminating that I wasn't able to manage a 2x speed improvement running compared to comfortable hiking. Some of that is surely due to the arduous climb - even on a casual hike, you are near 100% effort when ascending a steep line. Both Cannon and Jefferson had km+ long sections of 20% grade (30% on Cannon). I may attempt a more controlled experiment - where I time total duration for hiking speed vs fell running speed, minimize stops, and traverse identical routes.
Cannon also had some garbage time where I ran along a trail at the base of the mountain - the first four km of my hike - at 6:00/km. My slowest km on Cannon was the 30% grade at 18:52; on Jefferson, our slowest was a 39:20 descent at 30% grade. Some of that time is due to the necessity of waiting for each other on awkward sections.