Sounds like a fun ride and you did great!

I did the 46 mile (according to my bike computer) route of the Harvest Century.

http://www.harvestcentury.org

It said it was flat, but it wasn't. (I've found that to be the case in a lot of charity rides lately.) I'm a hill wimp, so I thought it was just me, but several of the other riders thought there were some pretty good hills too. Anyway, I had a blast and will do it again next year (may even do the 75 mile route next time).

Not-so-good personal time (4 hours 24 minutes, so an average of 10.45 mph), I finished and I had a great time. I always think it's great when people you don't even know are cheering you and everyone else on along the way. ("doing great", 'good job", 'almost there'.)