USGA TIE BREAKER METHOD
Net Tie Breaker Summary: use net scores for the last nine holes (of the final day for a multi-day event), then the last six holes (net), then the last three holes (net), then the last one hole (net) to determine the finish.
Gross Tie Breaker Summary: use gross scores for the last nine holes (of the final day for a multi-day event), then the last six holes (gross), then the last three holes (gross), then the last one hole (gross) to determine the finish.