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Golf Handicap Index Formula:
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The Golf Handicap Index (HI) is a numerical measure of a golfer's potential ability. It allows players of different skill levels to compete fairly by adjusting scores based on their demonstrated capability.
The calculator uses the official WHS (World Handicap System) formula:
Where:
Explanation: The system takes your best 8 score differentials from your last 20 rounds, averages them, and applies a 0.96 multiplier to slightly favor better performance.
Details: A Handicap Index provides a standardized way to measure golfing ability, enabling fair competition across different courses and skill levels. It's essential for tournament play and tracking improvement over time.
Tips: Enter at least 8 score differentials (one per line). The calculator will automatically select the best 8 scores and compute your Handicap Index. For most accurate results, use your most recent 20 score differentials.
Q1: What is a score differential?
A: A score differential represents your adjusted score relative to the course rating and slope. It's calculated as: (113 ÷ Slope Rating) × (Adjusted Gross Score - Course Rating).
Q2: Why use the best 8 out of 20 scores?
A: This system emphasizes consistency and potential rather than occasional poor performances, providing a better reflection of your true ability.
Q3: What does the 0.96 multiplier do?
A: The "Bonus for Excellence" factor slightly reduces the handicap index, rewarding players who demonstrate better potential performance.
Q4: How often should I update my handicap?
A: Handicaps should be updated after each round. Most golf associations provide daily handicap revisions through their systems.
Q5: Is this calculator official for tournament play?
A: While this calculator follows the official formula, tournament handicaps should be obtained through your national golf association's official handicap system.