Computing a Handicap Index

Once you have 20 or more scores for 18-hole rounds in the Handicap System, your handicap index will be based on the best 10 handicap differentials from your most recent 20 scores. However, as soon as you have 5 rounds in the system, you will have a handicap differential based on a smaller number of the best differentials:

 

Number of Acceptable Adjusted Scores
Differentials to Be Used in Computation
5 or 6
Lowest 1
7 or 8
Lowest 2
9 or 10
Lowest 3
11 or 12
Lowest 4
13 or 14
Lowest 5
15 or 16
Lowest 6
17
Lowest 7
18
Lowest 8
19
Lowest 9
20
Lowest 10