Yes, this race is capped, so if you’re thinking of doing it, you’d better sign up now (click here for registration)! I remember the first time I did the Birkie back when I was 18, I was able to wait until the week before the event…but those days are long gone and if you don’t sign up before it closes, it’s VERY difficult to get in (I’d say impossible, but I’ve heard of it happening at great expense to the competitor, believe me you don’t want to go that route, just bite the bullet and sign up!).