The short answer is I don't know...yet. MRI scheduled for early May and hopefully that sheds some light on the pain under my knee cap. The Doc ruled out ACL, MCL, meniscus and is leaning toward an issue with the patellar tendon. I'm hoping it's just something that a little dedicated PT can fix and that running can start back up soon.
I'll have to devise some other workouts to occupy my time (and keep the weight off). Matt Hart has a great core workout on his blog, maybe I'll start with that. Maybe some weekend rock climbing if I can find a willing partner.
Haven't scratched the Silver State 50 yet but it's safe to assume I won't be running 50 miles there. I'll hold out hope that I can do one of the shorter distances (50k or 1/2 marathon).