I'll start with mine. The Markleeville Death Ride. Though the course changes a little from year to year, both years I completed it, I did the five pass version - one hundred and fifty miles, and fifteen thousand feet of climbing. Please Register or Log in to view the hidden image! Here I am descending from the peak of Carson pass, going fifty five MPH. Please Register or Log in to view the hidden image! I blew it in the dry climate and didn't drink enough, which really made me suffer. But I finished it, and came back for more next year. So, what challenge have you completed against all odds?