Calculating your Index
- Take your adjusted gross and subtract the course rating of the tees you played. The course rating has a decimal, e.g., 71.3. The result is called a “differential”.
- Divide the result of No. 1 by the Slope of the tees you played and multiply by 113. The result is an “adjusted differential”.
- Take the lowest 10 of your last 20 adjusted differentials, add them together and multiply by 96%.
- Divide the result of No. 3 by 10. Drop everything after the tenths. The result is your index.
We will use our monthly tournament score as three rounds in your stats. We have two different ways to calculate the index, which depends on how many scores we have from you. If we don’t have more than 4 of your rounds then we use the following formula: (Lowest Score) * .96.
If we have 5 or more rounds than we use the following formula:
|5 or 6 – Lowest score||15 or 16 – Lowest six scores|
|7 or 8 – Lowest two scores||17 – Lowest seven scores|
|9 or 10 – Lowest three scores||18 – Lowest eight scores|
|11 or 12 – Lowest four scores||19 – Lowest nine scores|
|13 or 14 – Lowest five scores||20 – Lowest ten|