A minimum of five scores and a maximum of 20 is required to get started. For each score, the USGA Course Rating and Slope Rating for the courses played are also required. Using those figures, calculate your handicap with the formula below.(Score - Course Rating) x 113 / Slope Rating
How Many Rounds Used:
If you have only 5 or 6 rounds in the last 12 months, your best round is used as the differential
7-8 rounds, best 2 rounds
9-10 rounds, best 3 rounds
11-12 rounds, best 4 rounds
13-14 rounds, best 5 rounds
15-16 rounds, best 6 rounds
17 rounds, best 7 rounds
18 rounds, best 8 rounds
19 rounds, best 9 rounds
20 rounds in the last year, use the best 10 rounds.
Final Handicap Index Calculation:
Then, we take your average differential of your best rounds and multiply it by .96 to get your Handicap Index.
