I thought I'd share with you all my race report for the Antelope Canyon 50 Mile. It was held this past Saturday in Page, Arizona by Ultra Adventures. In the "Back-to-Back" thread there was some discussion about running being more than about PR's and this race seems timely to answer some of those questions for myself.
http://coffeemoneyrunning.blogspot.com/2014/02/antelope-canyon-50-mile.html