Hi Ron....
Friday and Saturday are the two days that all Stunt guys want to be a part of: Friday is "Top Twenty" day, where the top 20 Advanced fliers fly to determine the Advanced champion. The Open guys fly to determine the top five. The top five Open fliers fly on Saturday, as well as the Junior and Senior champions (the Jr. / Sr.s fly earlier to determine the Jr. and Sr. champions) fly for the Walker Cup.
Saturday is a fairly short day, with only 21 flights total, and then the banquet.
Go, and have fun!