Online registration is limited to 150 drivers and a 10 driver waiting list.  When an entrant drops out of an event, the first person on the waiting list will be assigned that drivers number, and so on. 

Drivers on the waiting list should check the entry list on a regular basis to see if they have made it into the event. After a driver from the waiting list has been assigned a number, the entry fee payment should be made within 48 hours.

If a number is not assigned before sunday,  show up and go through the processes as if you were driving in the event.  Registration, Tech, Walk the course, etc.  The only thing that you will be doing differently is that you will not be required to pay in advance (Pay at registration instead).  

During the drivers meeting an announcement will be made as to which waiting list drivers have been assigned numbers.  Those drivers will then go to registration and pay for the event. 

There are no guarantees that all waiting list drivers will get into the event.