How Is Your Golf Handicap Calculated in 2020?
if youve ever looked at your handicap index and wondered how on earth that number was calculated, youre not alone. In January 2020, golf introduced the World Handicap System (WHS), completely changing how handicaps work worldwide.
This guide breaks it down step by step, explains the formulas in plain English, and walks you through a real example so you can see exactly how your Handicap Index is calculated.
What Changed in 2020?
Before 2020, golf handicaps were calculated differently depending on where you played. The USGA system, CONGU system, EGA system, and others all used slightly different methods. This created confusionespecially for golfers who traveled or played internationally.
That all changed with the introduction of the World Handicap System (WHS) in January 2020.
Key changes introduced in 2020:
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One global handicap system used everywhere
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Handicap Index based on the best 8 of your most recent 20 score differentials
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Removal of the old 0.96 bonus for excellence
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Introduction of soft cap and hard cap to limit rapid handicap increases
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Addition of Playing Conditions Calculation (PCC) to reflect abnormal course difficulty on a given day
The goal was simple: make handicaps fairer, more portable, and easier to understand.
Why the Change Matters to Recreational Golfers
For everyday golfers, the WHS is a big win. Your handicap now:
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Travels with you to any course worldwide
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Adjusts more fairly for different tees and course difficulties
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Reflects how you can play on a good daynot just your average score
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Protects against sudden, unrealistic handicap jumps
In short, it makes competition more balanced and enjoyable for players of all levels.
How a Handicap Index Is Calculated
Under the World Handicap System, calculating a Handicap Index follows a clear process:
Record scores ? Adjust scores ? Calculate score differentials ? Select best 8 of 20 ? Apply caps and adjustments ? Round to one decimal
Lets break down each step.
Convert Raw Scores to Adjusted Gross Scores
Your raw score isnt always the score used for handicap purposes. Under WHS, extremely high hole scores are capped using Net Double Bogey.
Net Double Bogey = Par + 2 + any handicap strokes you receive on that hole
This ensures one disastrous hole doesnt unfairly inflate your handicap.
Key terms:
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Adjusted Gross Score: Your total score after applying net double bogey limits
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Net Double Bogey: The maximum score allowed on a hole for handicap purposes
This replaces older systems like Equitable Stroke Control and creates consistency worldwide.
Calculate a Score Differential for Each Round
Once your score is adjusted, the system calculates a score differential, which measures how well you played relative to course difficulty.
Score Differential formula:
(Adjusted Gross Score ? Course Rating ? PCC) (113 Slope Rating)
What each part means:
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Course Rating: Expected score for a scratch golfer
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Slope Rating: Relative difficulty for non-scratch golfers
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113: Standard slope value
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PCC (Playing Conditions Calculation): Daily adjustment (-1, 0, +1, +2, or +3)
Important: PCC can raise or lower differentials on days when weather or setup makes the course play unusually hard or easy.
Choose the Best 8 of Your Most Recent 20 Differentials
Your Handicap Index is not an average of all your scores.
Instead:
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The system looks at your most recent 20 score differentials
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Selects the best (lowest) 8
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Averages those 8
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Rounds the result to one decimal place
If you have fewer than 20 rounds, WHS uses a progressive calculation:
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3 scores ? lowest 1
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6 scores ? lowest 2
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9 scores ? lowest 3
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And so on, until you reach 20 scores
This allows new golfers to obtain a handicap quickly while keeping it fair.
Caps and Exceptional Score Reductions
To protect handicap integrity, WHS introduced safeguards:
Soft Cap
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Limits how much your handicap can increase once it rises 3 strokes above your lowest index in the past year
Hard Cap
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Absolute maximum increase of 5 strokes above your lowest index in 12 months
Exceptional Score Reduction
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If you post a score 7.0 or more strokes better than your index, your handicap is automatically reduced further
These rules prevent manipulation and keep handicaps realistic.
How the Course Handicap Is Calculated
Your Handicap Index is universalbut the number of strokes you receive depends on the course and tees youre playing.
Course Handicap formula:
Handicap Index (Slope Rating 113) + (Course Rating ? Par)
The result is rounded to the nearest whole number.
Why Course Rating ? Par matters:
It accounts for courses or tees that are longer or shorter than par suggests, ensuring fairness across different layouts.
Quick example:
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Handicap Index: 12.4
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Slope Rating: 130
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Course Rating: 71.5
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Par: 72
Course Handicap ? 14 strokes
Playing Handicap, Strokes Given, and Net Scores
In competitions, your Course Handicap may be adjusted to create a Playing Handicap.
Examples:
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Stroke play: often 95%100%
-
Match play: sometimes 90%100%
Playing Handicap = Course Handicap competition allowance
These allowances are set by local committees to balance different formats and skill levels.
Worked Example: Calculating a Handicap Index
Lets look at three sample rounds (simplified):
|
Round |
Adjusted Score |
Course Rating |
Slope |
PCC |
Differential |
|
1 |
88 |
72.0 |
125 |
0 |
14.5 |
|
2 |
85 |
71.5 |
128 |
+1 |
11.9 |
|
3 |
90 |
72.3 |
120 |
0 |
16.7 |
With only 3 rounds, WHS uses the lowest 1 differential.
Lowest differential = 11.9
So your Handicap Index = 11.9
As you post more scores, the calculation evolves automatically.
Common Beginner Questions
How many rounds do I need to get a handicap index?
You need a minimum of 3 full 18-hole scores (or equivalent combinations of 9-hole scores).
Whats the difference between Handicap Index and Course Handicap?
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Handicap Index: Your overall playing ability (portable)
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Course Handicap: The number of strokes you get on a specific course and tee
Why did my handicap change even though my scores didnt?
Because of:
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Playing Conditions Calculation (PCC)
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Soft or hard caps
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Exceptional score reductions
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Older scores dropping out of your last 20
Does weather affect my handicap?
Yes. Severe conditions are reflected through PCC, which adjusts differentials for everyone playing that day.
Where to Check or Get Your WHS Handicap Index
You can access your handicap through:
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ParTeeOf18 member dashboard
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National golf association portals
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Club management systems
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Free online golf handicap calculators
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Mobile golf apps that support WHS scoring
Most systems update your index daily after score submission.
Suggested FAQs for Snippet Optimization
What is the World Handicap System (WHS)?
A global handicap system launched in 2020 that standardizes how golf handicaps are calculated worldwide.
How is a score differential calculated?
By adjusting your score for course difficulty using the formula:
(Adjusted Score ? Course Rating ? PCC) (113 Slope Rating)
How many scores are used to calculate a Handicap Index?
The best 8 score differentials from your most recent 20 rounds.
Final Thoughts
The World Handicap Estimator System made handicaps fairer, smarter, and easier to understand. Once you grasp the basicsadjusted scores, differentials, and the best-8 ruleyoull know exactly where your number comes from and why it changes.