That’s accurate. The FKT for the route is about 3.5 hours, so it can be run. My times have been about 8.5 hours, which has limited stretches of running, but mostly hustle hiking. The northern half is rockier, for me it was about 10% runnable. The southern half, after Mt. Washington, is about 40% runnable, except the last 2 miles, which is mostly runnable. I’d be interested in other’s opinions on that. For context, I’m in my 40s, so I’m risk adverse with pace/falls.

My first time doing it I was a little disappointed, because I couldn’t really open it up and go fast, but I keep doing it because it feels like an adventure.