Ran Mt. Rubidoux again today. It was a personal best for me on this run. The course is 3.88mi w/ 820ft elevation change. My time 27:02min (6:58mi/mi), beating my previous best by 2min. The hill is about comparable to the Torrey Pines hill in the La Jolla 1/2 Marathon so if I can add 4 1/2 miles on either side of this run, I'll be good for the race on April 22.