Ekaterina Solovieva is an obstacle racer and runs one of the top OCR blogs around. She recently interviewed David Kalal about his Survival Run: Hunter Gatherer 2013 experience, here is that interview/report. 

A short while later we learned that in order to get our bib we had to carry a log 2.5 miles uphill and carve our Race Number into it. No problem!
— David Kalal

bad-ass /’bad as/

Noun 1. an uncommon man of supreme style 2. the epitome of American male, who radiates confidence in everything he does. He carves his own path, and while slow to anger, is brutally efficient when fighting back. 3. David Kalal