I felt like I was moving pretty solidly when I thru-hiked the CT. 34 days, 23 hours or so. I took only two zeroes and the rest of the days, I was moving solidly.
Any one that can beat nine days has my respect. Being supported makes it different, you say? Not when you're churning out that sort of mileage. It's Herculean. I find it damned impressive.