Reading this thread motivated me to try my first solo century next week. Farthest i've gone up until this point was a 62 miler, i was pretty tired by the end but i was going at a pretty fast pace. Think i averaged around 17 mph. If i can keep my speed fairly low i think i'll be fine. Have a hammer flask so i'll bring a full 5 servings worth of hammer gel, couple of clif bars and a nature valley bar. There's gas stations and 7-11's along my route so if i need anything i can always stop.