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USGA Handicap Differential Formula:
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The USGA Handicap Differential measures a golfer's performance relative to the difficulty of a golf course. It is used to calculate a golfer's handicap index by comparing their adjusted gross score to the course rating and slope rating.
The calculator uses the USGA Handicap Differential formula:
Where:
Explanation: The formula adjusts a golfer's score based on course difficulty, with 113 representing the standard slope rating for a course of average difficulty.
Details: The score differential is essential for establishing and maintaining an accurate USGA handicap index, allowing golfers of different skill levels to compete fairly.
Tips: Enter the adjusted gross score (after applying equitable stroke control), course rating, and slope rating. All values must be positive numbers.
Q1: What is Adjusted Gross Score (AGS)?
A: AGS is the golfer's gross score adjusted by equitable stroke control, which sets a maximum number of strokes per hole based on the player's handicap.
Q2: What do Course Rating and Slope Rating represent?
A: Course Rating indicates the expected score for a scratch golfer. Slope Rating measures the relative difficulty of a course for bogey golfers compared to scratch golfers.
Q3: Why is 113 used in the formula?
A: 113 is the standard slope rating for a course of average difficulty. It serves as the baseline for calculating differentials.
Q4: How many differentials are needed for a handicap index?
A: A handicap index is typically based on the best 8 of the most recent 20 score differentials.
Q5: Can this calculator be used for international handicaps?
A: While the formula is USGA-specific, similar principles apply to other handicap systems like the World Handicap System.