What is Strokes Gained? A Deep Dive into This Powerful Golf Analysis Tool
Imagine being able to pinpoint exactly where you're losing (or gaining!) strokes on the golf course, not just in general terms like my putting was off, but with laser-like precision. That's the power of strokes gained, a revolutionary performance analysis tool that's transforming how golfers of all levels understand and improve their game.
The Genesis of Strokes Gained: A Statistical Revolution
Before strokes gained, golfers relied on traditional statistics like fairways hit, greens in regulation, and total putts to assess their performance. While these metrics provide a general overview, they often fail to capture the nuances of the game. For instance, is missing a fairway by a yard penalized the same as missing by 50 yards? Traditional stats don't differentiate.
Strokes gained, however, offers a far more granular and insightful approach. The concept was pioneered by Professor Mark Broadie, a Columbia Business School professor who applied his expertise in statistical analysis to the game of golf. Broadie's groundbreaking research, detailed in his book Every Shot Counts, revealed the true value of each shot in relation to a benchmark – the average number of strokes it takes a tour professional to complete the hole from that same spot. Essentially, strokes gained measures how much better or worse a player performs compared to the average PGA Tour player in a specific situation.
How Strokes Gained Works: Breaking Down the Calculation
The fundamental principle behind strokes gained is comparing a player's actual performance on a shot to a baseline expectation based on the starting point of that shot. Let's illustrate with a simple example:
Imagine a player hits their tee shot on a par-4 hole, landing in the fairway 150 yards from the hole. Based on historical data from professional golfers, the average number of strokes it takes to complete the hole from that position is, say, 3.0.
Now, the player hits their approach shot to 10 feet. The average number of strokes to hole from 10 feet is 1.7.
Here's how we calculate the strokes gained on that approach shot:
**Strokes gained = (Expected strokes before the shot) – (Expected strokes after the shot) – 1**
Strokes gained = (3.0) – (1.7) – 1
Strokes gained = 0.3
In this scenario, the player gained 0.3 strokes on the field with that excellent approach shot. A negative number would indicate strokes lost.
Breaking Down Strokes Gained into Categories
While understanding the overall strokes gained is valuable, its true power lies in breaking it down into specific categories:
**Strokes Gained: Off-the-Tee:Measures performance on tee shots on par-4s and par-5s. This assesses driving distance and accuracy in relation to the field.
**Strokes Gained: Approach:Evaluates performance on shots from the fairway (or rough) into the green. This statistic highlights the accuracy and distance control of iron play and approach wedges.
**Strokes Gained: Around-the-Green:Gauges performance on all shots within approximately 30 yards of the green, including chips, pitches, and bunker shots. It measures short game prowess and the ability to save par.
**Strokes Gained: Putting: Analyzes putting performance based on starting distance from the hole. It reveals a player's ability to convert putts from various lengths, highlighting strengths and weaknesses on the greens.
By analyzing these individual categories, golfers can identify the areas where they excel and the areas that require the most attention. For example, a player might discover they are losing strokes consistently around the green despite being a good driver of the ball.
Why Strokes Gained Matters: Beyond Traditional Stats
Strokes gained analysis provides a more comprehensive and accurate picture of a golfer's performance than traditional statistics for several key reasons:
**Contextualization:Strokes gained accounts for the difficulty of a shot. A 20-foot putt for birdie is not the same as a 20-foot putt to save par – strokes gained recognizes this difference.
**Precision:It quantifies the impact of each shot, allowing for precise identification of strengths and weaknesses. You're not just saying my putting was bad; you're saying I lost 1.5 strokes on putts between 8 and 15 feet.
**Benchmarking: It compares a player's performance to a professional standard, providing a realistic assessment and a clear target for improvement.
**Strategic Insights:It reveals overall strengths and weaknesses of your game and this can help you to make better strategic decisions during a round. This could mean choosing a more conservative shot if your approach play is letting you down, or conversely being more aggressive if your putting is on fire.
How to Use Strokes Gained to Improve Your Game
While strokes gained was originally developed for professional golfers, its principles can be applied and adapted to players of all skill levels. Here’s how you can leverage this powerful tool:
1. **Data Collection:The first step is to start tracking your shots during your rounds. This can be done using a variety of methods, including:
**Shot Tracking Apps:Numerous apps are available for smartphones and smartwatches, allowing you to record the location and outcome of each shot. These apps often automatically calculate your strokes gained statistics.
**Spreadsheets: For a more manual approach, you can create a spreadsheet to record your shot data and calculate strokes gained yourself. While this requires more effort, it provides a deeper understanding of the calculations involved.
**Professional Club Fitting/Data Analysis:Some golf professionals and club fitters now offer data analysis services using launch monitors and other technology to measure strokes gained.
2. **Data Analysis:Once you’ve collected enough data (ideally over several rounds), it's time to analyze the results. Look for patterns and trends in your strokes gained numbers.
**Identify Weak Areas:Which category is consistently costing you the most strokes? Is it your driving, approach play, short game, or putting?
**Pinpoint Specific Issues: Within each category, can you identify specific problem areas? For instance, are you losing strokes on long putts, short-sided chips, or fairway bunkers?

3. **Targeted Practice:Armed with this knowledge, you can tailor your practice sessions to address your specific weaknesses.
**Focus on Improvement:If your data reveals that you are losing strokes on approach shots, focus on improving your iron play and distance control.
**Seek Professional Guidance:Consider working with a qualified golf instructor to diagnose and correct any technical flaws in your swing or short game.
**Utilize Drills and Training Aids:Employ drills and training aids to improve your weak areas. For example, if you're struggling with putting, use a putting mat and alignment aids to improve your stroke.
4. **Regular Monitoring:Continue to track your shots and analyze your strokes gained data over time. This will allow you to monitor your progress and make adjustments to your practice plan as needed.
Democratization of Data: Accessing Strokes Gained as an Amateur
While rigorous strokes gained analysis was once the exclusive domain of tour professionals, the rise of accessible technology has made it increasingly available to amateur golfers. Several user-friendly apps and devices now offer strokes gained tracking and analysis:
**Arccos Golf: This system utilizes sensors in the grip of each club to automatically track every shot, providing detailed strokes gained data and insights.
**Shot Scope:Similar to Arccos, Shot Scope uses GPS and shot tracking to provide comprehensive performance analysis.
**Garmin Golf Watches: Many Garmin golf watches offer shot tracking capabilities and can calculate strokes gained statistics.
These technologies, combined with readily available online resources and coaching, are empowering golfers of all skill levels to leverage the power of data to improve their game.
Limitations and Considerations
While strokes gained is a powerful tool, it's essential to be aware of its limitations:
**Sample Size:Strokes gained analysis requires a sufficient amount of data to be statistically significant. A few rounds may not provide an accurate representation of your overall performance.
**Course Conditions:Course conditions can influence strokes gained numbers. A course with fast greens may penalize poor putters more severely than a course with slow greens.
**Subjectivity:While the calculations are objective, the interpretation of the data can be subjective. It's important to consider other factors, such as your skill level and playing goals, when analyzing your strokes gained numbers.
**Cost:The latest equipment to measure these improvements don't come cheap, you'll have to consider the initial outlay and whether the investment is worth it for you.
The Future of Strokes Gained
As technology continues to evolve, strokes gained analysis is likely to become even more sophisticated and accessible. Expect to see:
**More granular data:Future systems may track even more detailed information, such as clubface angle at impact and ball spin rate, providing an even deeper understanding of performance.
**Artificial intelligence-powered insights:AI algorithms may be used to analyze strokes gained data and provide personalized recommendations for improvement.
**Integration with virtual reality training:VR technology may be used to create realistic training scenarios that allow golfers to practice their weak areas in a simulated environment.
Conclusion: Embracing Data-Driven Improvement
The strokes gained approach represents a paradigm shift in how golfers analyze and improve their game. While traditional statistics offer a superficial overview, strokes gained provides a laser-focused analysis of each shot, pinpointing strengths and weaknesses with unprecedented accuracy. By embracing this data-driven approach, golfers of all levels can gain a deeper understanding of their performance, identify areas for improvement, and ultimately, unlock their full potential on the course. So, start tracking, start analyzing, and start gaining those strokes!