Hi bluenose,
When 2 or more players are tied with the same score after 9 holes the decision goes to a tiebreaker. We use the USGA's tiebreaking rules and they are listed below:
Tiebreakers:
#1 Overall score
#2 Cumulative score on the first 6 holes
#3 Cumulative score on the last 3 holes
#4 Hole by Hole score matching, starting at #9 and working back to #1.
#5 If the tie still isn't broken after these steps then it's awarded to the player who completed the round first.