MUST HAVE 3 ROUNDS TO ESTABLISH YOUR HANDICAP............. * ARE THE ROUNDS THAT ARE INCLUDED INTO YOUR HANDICAP..... ONLY YOUR TOP SCORES ARE CALCULATED.
What You'll Need for the Handicap Formula
What numbers do you have to have in
order to perform the handicap index calculation? The formula requires the following:
Have all that? OK, we're ready to
get into the math of the handicap formula.
Step 1 In Handicap Formula: Calculate the Differentials
Using your adjusted gross scores,
the course ratings and slope ratings, Step 1 is calculating the handicap differential for each round entered using this formula:
(Score - Course
Rating) x 113 / Slope
For example, let's say your score is
85, the course rating 72.2, the slope 131. The formula would be:
(85 - 72.2) x 113 / 131 = 11.04
The sum of that calculation is
called your "handicap differential." This differential is calculated for each round entered (minimum of five, maximum of 20).
(Note: The number 113 is a constant
and represents the slope rating of a golf course of average difficulty.)
Step 2: Determine How Many Differentials To Use
Not every differential that results
from Step 1 will be used in the next step.
If only five rounds are entered,
only the lowest of your five differentials will be used in the following step. If 20 rounds are entered, only the 10 lowest differentials are used. Use this chart to determine how many differentials
to use in your handicap calculation.
Step 3: Average Your Differentials
Get an average of the differentials
used by adding them together and dividing by the number used (i.e., if five differentials are used, add them up and divide by five).
Step 4: Arriving At Your Handicap Index
And the final step is to take the
number that results from Step 3 and multiply the result by 0.96 (96-percent). Drop all the digits after the tenths (do not round off) and the result is handicap index.Or, to combine Steps 3 and 4 into a single formula:
differentials/number of differentials) x 0.96
Let's give an example using five
differentials. Our differentials worked out to (just making up some numbers for this example) 11.04, 12.33, 9.87, 14.66 and 10.59. So we add those up, which produces the number 58.49. Since we used
five differentials, we divide that number by five, which produces 11.698. And we multiply that number by 0.96, which equals 11.23, and 11.2 is our handicap index.