Sue - I believe that is right (because it's certainly not an average for the whole ride!). On the way out to Seward Park in the green CTS group we intentionally rode slow, before coming back, they said to expect to be going 16MPH (it was the 14-16MPH group) on the flat. So, I imagine it's the same for the CATS group. Hey, if you're taking the plunge too, at least we'll have each other haha... I think my co-worker may also be joining us. she's never done these rides before, but we ride together usually and we're a pretty equal mach. I told her how it went, so she's going to check out the website and see if she wants to join that group too.