my most recent was at 16 or 17 mph. it had a few thou feet of elevation gain, forget exactly how much, in another thread. hadn't done a century in over 20 years so i was pleasantly surprised.

I have never been athletic or what I would consider a strong rider. I have never ridden a 5-hour century, and now at 63 I'm not even interested. I do have a 75-mile ride coming up. I would be happy to finish that in five hours.