For our PGA challenge, the of the 1000 people who played it, only 156 turned in cards. The average handicap (for The Ocean Course) was 9. Their average gross score was 98 making the average net around 89. The low gross was 78 by a scratch player who played a number of times in the U.S. Am. The low net score was 75 (a 7 handicap who shot 82).
It broke down that only 1 person broke 80 (<1%), 27 broke 90 (17%), 91 broke 100 (58%) and 65 were over 100 (42%). But, that was for those who turned in cards (156 of about 1,000 players).