Started on the north side around 8:30am. 28deg to start, 50deg at the end. There was decent wind from the south. Took 3000 calories and ate them all. Got water at the bathrooms in the middle of the trail. Longest stretch without refilling was 20mi from 96th st to the south end and back to 96th st. felt pretty good through 30mi. After that never felt great. Low point was around 40mi where I walked for a bit but then rebounded fairly well and finished it out feeling good enough.
Looks like they've added nearly a mile to the north end of the trail since the last FKT was posted. It appears they are adding more to the north side since they were doing work on it the day I ran.
I believe someone named Andy ran this as an out and back in May 2020. I can't find it now, but I had found it on strava at some point. He had 53.4mi in 8:49:22. I assume supported, but who knows.