I've ridden organized metric centuries, and I've ridden laps of the local MUP totaling 100k, but today, I rode my first unsupported 100k ride on "real" roads. Probably the most climbing I've done in one day, too. Tulsa to Mannford to Sapulpa to Tulsa. Went through two bottles of water, a camelbak that holds about 3 more, and a 44 oz. Powerade slush. You can see the full report, w/map, here.