Totally weird, and ok with it. Why else do you think I love Portland ??
http://www.pcs.org/blog/item/why-is-portland-weird/
My 10K PR is pretty terrible. I have never ran it on the track and with my lack of success at 5000m, I am terrified of even attempting it. I would probably be more likely to run a faster time in slop/xc conditions. (I have track ADD combined with over-thinking syndrome that I can't go as hard for anything above 3000m on a track).
I ran 35:48 last year (and noted in my blog that I got my a$$ kicked by over 4 minutes by Emily Infeld in that same race at Tufts) - last fall for me was terrible, so I'd imagine I could likely run a good 90 seconds faster now, but still not gonna touch true professionals which is why I'm just a club level runner.
Hand Shalane a stroller at the start of any 10K road race without ever have previously touched one in her life and she would likely run 34:00 or faster but I know Jerry wouldn't allow that ;) - which is why I got to have fun this past weekend.