Athletes
Route variation
Ascent
Gender category
Male
Style
Unsupported
Finish date
Total time
52m
55s
Report
The FKT in recent years is 52:55 (Nick Clark) <http://irunmountains.blogspot.com/2009/07/round-mountain-summer-time-trial.html>. I've heard that Pablo Vigil used to train on Round, so I would be surprised if the all-time record isn't under 50 minutes.
I've also run the up and down in 1:34:25 (57:10 up 37:15 down). I wasn't full out on the climb, but think this is still an FKT for the r/t and descent.