Originally Posted by
FLvector
Don't ever assume that riders you pass aren't as fast as you. They might be just finishing a century, had a recent injury, doing intervals or a recovery ride, etc.
This. Took me a while to learn it, but finally driven home when I saw a rider I had blown by a few times doing rather well in a local race. Now I assume that everyone I see (with a few obvious exceptions) is just as fast, if not faster, than me.