Hi there!
Thanks for writing in! I checked your account it seems that the crawl was finished. Various factors sometimes can affect the speed at which Roger will check out your site, it usually tries to be as efficient as possible and not take the scenic route, every once in a while he gets stuck trying to resolve something on the site (crossword puzzle maybe) which can cause the crawl to last a little longer. We're constantly keeping track of how long the crawls take for our customers and try to come up with a better more efficient Roger!
If your next crawl is taking more than a day (24 hours), i would send us a ticket at help@seomoz.org. Thanks again for writing in!
Best,
Peter
SEOmoz Help Team.

Here's a couple of ways you can get around this if you need one in a hurry.