I'm no racer, I only ride for commuting purpose, but I've been doing it for over 20 years; though I've done a few long-distance bike trips. So I'm pretty good at it, but never really tried to see what I can do via a "test".
However, usually at the end of my rides lately I've been doing a sprint as fast as I can and I can hit anywhere between 30 - 35 mph. Never tried it on fresh legs, but now I'm a little curious. What's a good sprinting speed good for a 46 y/o male that weighs 225?