From the above link:
The event rate is $70 per night. All reservation requests will require one (1) night advance payment that will be refundable only if the reservation is cancelled by June 25, 2003. All reservations must be guaranteed with a major credit card. For reservations, call the hotel at (866) 242-5060. When making your reservation indicate that you want the Impala SS Club of America rates. If registering online through the Marriott website, the event code is IMP. In order to receive the event rate, all reservations must be made by June 25, 2003.
32 days and counting for your chance to win a room for the ISSCA Nationals!!!