Golf handicaps allow players of different abilities to play and compete together.
The basic idea is simple.
A stronger golfer receives fewer handicap strokes.
A higher-handicap golfer receives more.
What can initially seem confusing is that the number shown as your Handicap Index isn't necessarily the number of strokes you'll receive during a particular round.
That's because the World Handicap System accounts for the difficulty of the golf course and tees you're playing.
Let's break it down.
Start with your Handicap Index
Your starting point is your Handicap Index.
This is the number you'll normally see associated with your official handicap record.
For example:
- Golfer A has a Handicap Index of 7.8
- Golfer B has a Handicap Index of 17.6
- Golfer C has a Handicap Index of 29.1
The Handicap Index allows the abilities of golfers to be compared using a standard measure.
It isn't, however, automatically the number of shots each player receives on every course.
If you're completely new to this, start with our guide to what a golf handicap is.
Your Handicap Index is adjusted for the course
Golf courses vary enormously.
A short parkland course with relatively few hazards isn't the same challenge as a long championship course with difficult rough, bunkering and greens.
Even different tees on the same golf course can provide very different tests.
The World Handicap System addresses this by allowing your Handicap Index to be converted into a Course Handicap.
England Golf explains that your Handicap Index can be converted to a Course Handicap to determine how many strokes you receive for the particular tees you're playing.
That means you might receive a different number of strokes at different courses despite having exactly the same Handicap Index.
How are handicap strokes used?
Let's keep things simple.
Suppose a golfer has a Course Handicap of 18.
Across an 18-hole round, that golfer would normally receive one handicap stroke on each hole.
If their Course Handicap were 10, they would receive strokes on the holes with Stroke Index values 1 through 10.
If their Course Handicap were 24, they would receive one stroke on every hole plus a second stroke on holes with Stroke Index values 1 through 6.
This is where the Stroke Index numbers printed on a scorecard become important.
What is Stroke Index?
Most golf scorecards assign each hole a Stroke Index between 1 and 18.
These numbers are used to determine where handicap strokes are given or received.
For example, a player receiving eight strokes would normally receive one stroke on holes indexed:
1, 2, 3, 4, 5, 6, 7 and 8.
It is worth noting that Stroke Index isn't simply a ranking of the hardest holes on the course. Its allocation also needs to work appropriately for handicap match play and other formats.
Gross score vs nett score
Understanding gross and nett scoring makes handicaps much easier to understand.
Your gross score is the actual number of strokes you took.
Your nett score accounts for the handicap strokes you're entitled to receive.
For a simple example, imagine you shoot 92 and are receiving 18 handicap strokes.
Your basic nett result would be:
92 - 18 = 74
This means golfers with very different gross scores can compete on a nett basis.
An example of two golfers playing together
Imagine Chris has a Playing Handicap of 8 and James has a Playing Handicap of 20 for the format they're playing.
There is a 12-stroke difference between them.
Depending on the competition format, those handicap strokes allow the difference in demonstrated ability between the two golfers to be accounted for.
Chris is still expected to produce the better gross score.
James, however, receives additional strokes through the handicap system.
That means both players can have a competitive game.
This is one of the reasons golf can work socially between players of very different standards.
Does an 18 handicap get exactly 18 shots?
Not necessarily.
This is where the language around handicaps can become confusing.
A golfer might casually describe themselves as "an 18 handicap", but their exact Handicap Index could be something like 17.6 or 18.3.
That Handicap Index is then converted to a Course Handicap based on the course and tees.
A Playing Handicap may then be calculated depending on the format being played and any applicable handicap allowance.
So:
Handicap Index → Course Handicap → Playing Handicap
They are related, but they're not always the same number.
Does your handicap mean you should shoot that many over par?
No.
This is a very common misconception.
An 18 Handicap Index does not mean you should expect to shoot 18 over par every time you play.
Your Handicap Index reflects demonstrated ability and is weighted towards your better recent scoring.
With at least 20 Score Differentials in your record, WHS calculates your Handicap Index primarily from the lowest eight of your most recent 20.
As a result, shooting higher than your handicap suggests is perfectly normal.
We've explained the distinction further in what your golf handicap actually means.
How does your handicap go down?
Improving scores can reduce your Handicap Index.
Each acceptable score produces a Score Differential that takes the course and playing conditions into account.
As new Score Differentials enter your scoring record, they can become part of the group used to calculate your Handicap Index.
Strong performances can therefore bring your index down.
One great round won't necessarily transform your handicap overnight, although particularly exceptional scoring can trigger additional WHS adjustments.
How does your handicap go up?
Your handicap can also increase.
As new scores enter your record, older scores eventually stop being part of your most recent 20.
If one of your particularly strong scores drops out of the calculation and isn't replaced by something similar, your Handicap Index may rise.
WHS also contains safeguards designed to limit unusually rapid upward movement relative to your previously demonstrated ability.
Why is this better than simply using average score?
Because a raw average wouldn't account properly for the different courses golfers play.
Shooting 85 from one set of tees isn't necessarily equivalent to shooting 85 somewhere else.
The World Handicap System uses course ratings and Score Differentials to create a more transferable measurement.
That's why golfers can take their Handicap Index to another rated golf course and have it converted appropriately.
How is your handicap calculated?
The actual calculation is a little more involved than simply counting how many shots over par you score.
Once you have 20 Score Differentials, the basic calculation uses the average of your lowest eight from the most recent 20, along with any relevant WHS adjustments.
We've broken the numbers down step by step in how a golf handicap is calculated.
The easiest way to think about golf handicaps
You can think about the system in three stages:
1. Handicap Index
Your portable measure of demonstrated playing ability.
2. Course Handicap
Adjusts your Handicap Index for the course and tees you're playing.
3. Playing Handicap
Where applicable, adjusts the number further according to the format and handicap allowance being used.
You don't need to calculate all of this manually every time you play.
Apps, club systems and handicap calculators can handle much of the maths for you.
Understanding the principle, however, makes scorecards, competitions and conversations in the clubhouse considerably easier to follow.
