DH and I just signed up for the Amtrak Century in September (100 miles). We decided to ride it on the tandem with our tandem friends. I was totally hyped up to train for it myself on my single, but decided riding tandem with our buddies would be a good way for me to do my first century. I can focus on shorter distances on my single and get in a good base without putting too much pressure on myself. Now I'm off to seek out all the "half-ish" length centuries. I SO wish I could do CoolBreeze in Ventura in August, but I have a conflict that weekend.