On Monday morning, I gingerly swung my legs over the side of the bed and tentatively flexed my ankles and calves. I feared the worst, and therefore was ever so slightly heartened by my range of mobility. To be sure, I was quite sore, but the sun was shining and it was my last day in Chia and I could hardly pass up one final opportunity for an island run. Plus, my new friend Tito, who placed third in the 10k, had promised to take me on a route that...