I shaved 10 minutes off the FKT today - Started at Alvarado Staging area in Wildcat and finished at Proctor Staging area in Chabot 5:50:04.
Self-Supported/Unsupported (refilled water at Sibley and Skyline gate, otherwise carried everything myself, walked to Castro Valley Bart, took Bart and walked home, then rode my bike to pick up my car at Alvarado). It was tough as I was managing hamstring and calf cramping for most of the second half.
Someone will blow my time out of the water but it probably won't be me! Jimmy's "Low Bar" didn't feel that low to me, that's for sure...although I didn't really taper very well either - I skied 4 days in a row Sat-Tues then took a day off and went for it on Thursday.
I did take the French trail (vs the easier West Ridge variation) and as far as I can tell took the exact same route as Jimmy, and followed the "official" route as marked.
Strava link: www.strava.com/activities/241613735/overview
El Cerrito CA