Anne, I would agree. Of course, we can all probably picture the hardcore competitive runner. But what about the “Forrest Gump” (to use a comparison we're all probably sick of hearing people sitting in their cars use) type runner? What about the person who may infrequently or even never compete but runs through anything and runs a lot, maybe even very challenging runs, simply for the pure pleasure of running? Sometimes, while I consider myself a competitive runner, I realize I have some of this runner in me when I go through times when I couldn't care less if I ever ran a race again but I still go out for my runs, sometimes very challenging runs, regardless of the conditions or any external factors for no reason other than the fact that running is what I love to do.
That's why, if I were pressed on the issue, I'd probably say there are two types of “hardcore” runners. The hardcore competitor and the hardcore non-competitive runner.