You will use the same number given to you at registration check in for both days of racing.
Don't forget your number on the second day!
WSBA numbers are not used for this event. Numbers are to be worn on the right side both days and must be clearly visible for the camera at the finish line. Frame numbers also must be used and be clearly visible.
Here is a link that shows proper number placement: http://gcracingllc.com/numberplacement.aspx