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Differential Calculator
This page provides an overview for how handicaps are created. It also
includes the Differential Calculator, which can be used to calculate
differentials and preview possible
changes to your handicap on a round-by-round basis.
How is a Handicap Index produced?
According to the process devised by the USGA, handicap index is created through
a series of steps. The overall formula used is as follows:
Differential for each round = (113( Adjusted Score - Rating))/Course
Slope
Handicap = .96(Avg. of best 10 differentials from 20 most recent rounds)
Recipe for creating an official Handicap:
Ingredients:
20 most recent golf scores. These scores must be adjusted. (see FAQ for info on
how to adjust scores)
For each of these 20 most recent rounds you will need the following from each
related score: Date, Course Rating, Course Slope.
Cooking Instructions:
1. To prepare the Handicap you will need to attain the differential from
each of these 20 rounds. The formula for a differential is:
(113( Adjusted Score - Rating))/Course Slope
So for each of the 20 rounds you will need to Adjust the Score, Subtract the
Course Rating from that Adjusted Score, Multiply the result by 113, and divide
THAT result by the Course Slope.
The Differential Calculator (see above) can quickly do the math for you.
2. Once you have the 20 differentials, the rest is easy. Of the 20
differentials, pull out the 10 best. Add those 10 best together, and then divide
the sum by 10. This will give you the average of your top 10 differentials.
Then, multiply that average by .96 and the result will be your Handicap Index, a
delicious mouth-watering dish perfect for serving at any golfing occasion.
Monthly NCGA Handicap Reports - A New Service
The NCGA is offering a new service: monthly
handicap reports. In order to receive this monthly report, you must register your email
address. They promise not to send any spam.
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