@StickerDick is correct about the limit to the participants. Since its so close to the end of the year Im betting the spots fill up quick. I just wish I knew if they were starting at 12:01 AM or if it was just "sometime" on the 10th.
Straight off their website. I JUST found this. I was planning on staying up until midnight to buy tickets. Now we can all get a little sleep and buy in the morning.
Ticket Information DRIVER REGISTRATION WILL OPEN ON AUGUST 10TH AT 8AM EASTERN TIME!MOTORCYCLES ALLOWED!