I dunno. I just got one woman who didn't complete Chicago to register for it this morning. But, I also know a few others that didn't get to finish who are headed to Ohio on the 21st for that marathon and that marathon is also giving a discount to Chicago participants...<br><br>
So, because of the proximity of dates and the special offer and the fact that many people don't really know about the smaller marathons, maybe you'll be okay, but with less than 20 days out, I personally wouldn't risk it.