How Do You Calculate Strokes Gained Putting

Strokes Gained Putting (SG Putting) is a statistical measure used in golf to evaluate a player's putting performance relative to the field. It helps golfers understand how well they perform on the greens compared to their peers, providing valuable insights for improvement.

What Is Strokes Gained Putting?

Strokes Gained Putting is a key metric in golf analytics that measures how many strokes a player is better or worse than the average golfer on the greens. It's calculated by comparing a player's actual putting performance to the expected performance based on their putting statistics.

The concept is similar to other Strokes Gained metrics (like SG Approach or SG Off-the-Tee) but focuses specifically on putting performance. A positive SG Putting indicates the player is performing better than average, while a negative value shows they're underperforming.

Key Points

SG Putting is calculated per round and is expressed in strokes. It's a relative measure, meaning it compares a player's performance to the field average. The higher the number, the better the performance relative to peers.

How to Calculate Strokes Gained Putting

The calculation of Strokes Gained Putting involves several steps and requires specific data about the player's performance and the field average. Here's the standard formula:

Formula

SG Putting = (Actual Putts - Expected Putts) / Number of Holes

Where:

Actual Putts = Total putts made by the player
Expected Putts = Expected putts based on field average and player's putting statistics
Number of Holes = Typically 18 for a full round

The expected putts are calculated based on the field average and the player's putting statistics, which include:

Putting average (average number of putts per green in regulation)
Scramble percentage (percentage of times the player makes par or better from the fringe)
Missed GIR percentage (percentage of times the player fails to hit the green in regulation)

For a more precise calculation, golf analytics software often uses advanced statistical models that account for various factors affecting putting performance.

Assumptions

The calculation assumes that the field average is representative of the tournament or event being analyzed. It also assumes that the player's putting statistics are consistent with their performance on the day.

Example Calculation

Let's walk through an example to illustrate how to calculate Strokes Gained Putting.

Scenario

A golfer plays a round of 18 holes and makes 30 putts in total. The field average for putts is 32, and the expected putts for this player based on their statistics is 31.5.

Calculation Steps

Determine the actual putts: 30
Determine the expected putts: 31.5
Calculate the difference: 30 - 31.5 = -1.5
Divide by the number of holes: -1.5 / 18 ≈ -0.083

The result is approximately -0.083 strokes gained putting. This means the player was slightly worse than the field average in putting performance for that round.

Interpretation

A negative SG Putting indicates the player underperformed on the greens relative to the field average. In this case, the player was 0.083 strokes worse than average in putting performance.

Interpreting Results

Understanding Strokes Gained Putting results requires interpreting the numbers in the context of golf performance. Here are some key points to consider:

Positive SG Putting

A positive SG Putting indicates the player performed better than the field average in putting. This could be due to:

Consistent putting performance
Effective strategy on the greens
Good putting under pressure

Negative SG Putting

A negative SG Putting suggests the player underperformed relative to the field average. Common reasons include:

Inconsistent putting
Poor putting under pressure
Ineffective strategy on the greens

Zero SG Putting

A zero SG Putting means the player performed exactly as the field average would expect. This could indicate:

Consistent but average putting
No significant advantage or disadvantage

Practical Implications

Golfers can use SG Putting to identify areas for improvement. A consistently negative SG Putting might indicate the need for putting practice or strategy adjustments. Conversely, a positive SG Putting can be a confidence booster, showing strong putting performance.

FAQ

What is the difference between Strokes Gained Putting and putting average?

Putting average measures the number of putts per green in regulation, while Strokes Gained Putting compares a player's actual performance to the field average. SG Putting provides a relative measure of how well a player performed compared to their peers.

How is the field average calculated for Strokes Gained Putting?

The field average is typically calculated based on the average performance of all players in a tournament or event. It accounts for the collective putting performance of the entire field.

Can Strokes Gained Putting be used to compare players from different tournaments?

Yes, but with some caution. While SG Putting is a relative measure, comparing players from different tournaments requires accounting for differences in field strength and course difficulty.

How often should I check my Strokes Gained Putting?

It's helpful to track SG Putting regularly, especially after rounds where putting performance was particularly strong or weak. This can help identify trends and areas for improvement.