PlayerPath: Approach Shot Performance Drivers

Abstract

This paper presents the PlayerPath Approach Shot Performance Driver framework, five analytically derived, coaching-actionable metrics that collectively explain Strokes Gained: Approach (SG Approach) for competitive amateur golfers. The framework is built from shot-level data calibrated to a +3 competitive amateur baseline and organized around a central thesis: the goal of approach shot analysis is not to describe outcomes but to identify why performance breaks down.

The five drivers are organized into three analytical lenses: skill assessment (A1, A3), performance measurement (A2), and risk evaluation (A4, A5). They are connected to the Tiger 5 root cause framework for integrated scoring analysis. SG Approach is treated as an output summary that the five drivers explain causally, not as a driver itself.

Thresholds are derived empirically from the benchmark expected score table using distance-relative formulations where possible, ensuring that quality standards scale appropriately across the full 50 to 230 yard approach range. Key methodological contributions include the 20% precision rule for A3 (end distance in feet at or under 20% of starting distance in yards), the dual scoring position threshold for A2 (on-green inside 20 feet or off-green within 6 yards of the pin), and the approach-initiated three-putt exposure threshold at 40 feet.

Introduction: The Approach Segment as Primary Scoring Engine

Within the PlayerPath framework, the four game segments (Driving, Approach, Short Game, and Putting) follow a pillar hierarchy that reflects their causal relationships to scoring. Driving is foundational: penalty avoidance and favorable lie creation set the conditions for everything downstream. Short game is damage control, and its ceiling is set by approach quality. Putting is opportunity conversion. Approach shots are the primary scoring engine.

This hierarchy is not arbitrary. A player who consistently creates scoring positions from the approach zone will score well despite modest putting variance, because they generate birdie opportunities at sufficient frequency to absorb normal conversion variation. A player who fails to create scoring positions faces a fundamentally different challenge: they must rely on short game excellence to avoid bogeys from difficult positions, and they have few birdie opportunities to convert regardless of putting quality. The approach segment is the leverage point at which competitive amateur scoring is most determined.

Key benchmark figures:

Three Levers, Five Drivers

Approach play affects scoring through three distinct levers, each answered by a different subset of the five drivers.

The first lever is green-finding: can the player hit the green when required, particularly from the mid-to-long iron distances where par preservation is the primary objective? This is the domain of A1, which isolates long approach GIR rate, and A3, which measures normalized precision across the full approach range.

The second lever is birdie creation: when the player is inside 150 yards, the range where scoring opportunities are generated, does the ball finish in a position from which a birdie attempt is realistic? A2 answers this through the scoring position rate, capturing both clean proximity and the quality near-miss within 6 yards of the pin.

The third lever is catastrophic avoidance: is the player making approach decisions that generate penalty strokes or obstruction-level misses that compound into double bogeys and wasted holes? A4 and A5 track these events explicitly, including from rough and sand starting lies where aggressive decision-making is most likely to produce devastating outcomes.

These three levers correspond directly to three coaching conversations. A player struggling with green-finding needs a ball-striking conversation covering contact quality, distance control, or club selection from mid-to-long iron distances. A player struggling with birdie creation despite adequate GIR rates needs a proximity and course management conversation covering target selection and the difference between hitting the green and hitting a scoring position. A player with acceptable green-finding and birdie creation who is still losing strokes to approach play almost certainly has an elevated A4 or A5 contribution, calling for a decision-making conversation about when to play aggressively from rough and sand and when to accept a conservative outcome.

The analytical foundation for this framework is Mark Broadie's strokes gained methodology, introduced in Assessing Golfer Performance on the PGA Tour (Broadie, 2012, Interfaces 42(2), pp. 146 to 165) and extended for amateur application in Every Shot Counts (2014). Strokes gained compares a shot's starting expected score to its ending expected score, less one stroke for the shot taken. The resulting value isolates the contribution of each shot to final score, independent of course difficulty, hole length, or pin position.

All expected score values in this framework are drawn from a benchmark table calibrated to the +3 competitive amateur baseline, adjusted from PGA Tour ShotLink data to reflect the shot distributions and scoring context of college-level competitive golfers. Tour benchmarks are not directly applicable to competitive amateurs: from 150 yards in the fairway, a Tour professional expects to hole out in approximately 2.91 strokes while a +3 amateur expects 3.01 strokes. These differences compound across all distance and lie type combinations.

Scope Conventions

A critical design principle governs which shots qualify for each driver. Approach skill is assessed only from starting lies where the player has genuine control over execution. Rough and sand introduce lie-dependent variance, including unpredictable contact, altered trajectory, and distance unpredictability, that obscures ball-striking skill measurement. For skill drivers A1 and A3, the population is restricted to Tee and Fairway starting lies exclusively.

The short approach performance driver A2 extends this population to include Rough starting lies inside 150 yards, reflecting the reduced lie variance at shorter distances. The expected score gap between Fairway and Rough narrows from +0.260 strokes at 150 yards to +0.180 strokes at 50 yards, a meaningful reduction that supports treating short rough approaches as legitimate scoring position attempts rather than compromised lies requiring separate analysis.

The risk drivers A4 and A5 apply to all playable starting lies including Rough and Sand, but explicitly exclude Recovery starting lies. A shot played from a recovery position already represents a previous failure; including recovery starts in the approach population would conflate separate causal events. The 50-yard lower boundary for all drivers marks the boundary between approach shots and short game. Shots inside 50 yards are classified as short game regardless of lie or club selection.

Table 1. Driver Scope Summary

SG Approach as Output, Not Driver

SG Approach is the output metric that the five drivers explain causally. It is not itself a performance driver. SG Approach tells a coach the magnitude of the approach problem: how many strokes the player is gaining or losing relative to the +3 baseline across all approach shots. The five drivers answer the diagnostic question: why is SG Approach what it is, and where should practice resources be directed to change it?

A player posting SG Approach of −1.2 per round could be losing those strokes through poor long approach GIR rate, inadequate proximity in the scoring zone, insufficient precision across the full range, approach penalties from aggressive play, or obstruction-level misses from rough and sand. These failure modes require different interventions. SG Approach alone cannot distinguish between them. The five drivers can.

The Five Drivers

The following five drivers are presented in causal sequence, moving from foundational green-finding skill through scoring position creation, normalized precision, and finally risk and damage outcomes. Each driver is specified with its scope, primary metric, empirical threshold derivation, scoring stakes from benchmark data, and Tiger 5 integration.

Driver Index

A1Long Approach GIR

Green in regulation rate. 150 to 200 yards. Fairway and tee lies.

Spec

A1 measures the rate at which approach shots from 150 to 200 yards find the strict putting surface, the foundational long iron execution benchmark. At this distance band, the primary objective shifts from proximity creation to green-finding. A player who consistently misses the green from mid-to-long iron distance is not creating birdie opportunities, is placing short game pressure on subsequent shots, and is the primary candidate for approach-attributed Tiger 5 failures.

Two distance sub-bands are tracked separately for coaching granularity. Band 1 (150 to 175 yards) is the mid-iron zone, typically 6 through 8-iron for competitive amateur players. Band 2 (175 to 200 yards) is the long iron and utility club zone, typically 4 through 6-iron or hybrid. These represent meaningfully different clubs and swing lengths, so identical overall GIR rates across the two bands can reflect very different underlying performance. The value of the split is in isolating where the weakness sits, not in prescribing its cause.

The scoring stakes of A1 are defined by a striking empirical consistency: the SG cost of a GIR miss into rough at 10 yards is −0.14 strokes versus an average GIR at every distance from 155 to 195 yards. A 10-yard miss from 155 yards costs nearly the same as a 10-yard miss from 195 yards. This uniformity validates A1 as a coherent single metric across the full range. A deeper miss into rough at 20 yards costs −0.48 strokes versus average GIR, consistently, across the full range. Recovery lies at this distance cost between −0.83 and −1.10 strokes depending on starting distance, confirming their status as approach-initiated catastrophic outcomes flagged by A5.

Table 2. A1 Scoring Stakes by Starting Distance

The Tiger 5 connection for A1 applies to Failure 1 (any par 5 bogey) and Failure 2 (double bogey or worse), specifically when the approach shot on that hole recorded the lowest SG value in the hole sequence. Failure 4 (bogey when approach started inside 125 yards) does not apply to A1, since A1's scope begins at 150 yards. Tiger 5 Failures 3 (three-putt) and 5 (missed green short game) carry explicit root causes in other segments and are excluded from A1 attribution entirely.

From a coaching perspective, the sub-band split is the primary diagnostic tool: it tells the coach where to look first, while what is actually causing the gap (contact quality, distance control, trajectory, club fitting) is determined through direct observation.

A2Short Approach Scoring Position

Scoring position rate. 50 to 150 yards. Tee, fairway, and rough lies.

Spec

A2 measures the rate at which short approach shots create genuine scoring positions, defined as either finding the green inside 20 feet or missing the green within 6 yards of the pin. This is the birdie engine of the approach segment. Where A1 asks whether the player found the green from distance, A2 asks whether the player found a position from which scoring is realistically possible.

The dual threshold is grounded in an empirically important finding: a shot finishing 3 yards off the green from 90 yards in light rough, with an expected score of 1.570 strokes to hole out, is analytically superior to a shot finding the back of the green at 20 feet, with an expected score of 1.880 strokes. The off-green miss at close range is 0.310 strokes better than the on-green result at the standard threshold distance, and this differential holds consistently at every starting distance from 55 to 145 yards.

The 6-yard off-green threshold was set to the distance at which a close miss remains roughly equal in value to the 20-foot on-green standard. At 6 yards off the green, expected strokes are 1.910, just 0.030 strokes behind the 20-foot putt benchmark, effectively a break-even outcome. Beyond 6 yards the gap widens quickly. Sand is excluded from the A2 starting lie population because sand introduces significant scoring variance that is largely independent of proximity to the pin, which would distort A2 as a measure of scoring position quality.

Table 3. Proximity Value by End Position (from 100 yards)

The proximity premium in this zone, the SG difference between finishing at 20 feet versus 40 feet, is +0.190 strokes at every starting distance from 55 to 145 yards. This perfectly consistent relationship means proximity improvement has identical scoring value regardless of whether the player is hitting a sand wedge from 60 yards or a 9-iron from 140 yards. A player who improves average proximity from 40 feet to 20 feet across their short approach population gains approximately 1.1 to 1.5 strokes per round depending on short approach frequency, among the highest single-area returns available to a competitive amateur.

The three-putt exposure threshold is set at 40 feet rather than a shorter distance. Three-putt risk starts to rise noticeably around 32 feet, but at that distance a two-putt is still comfortably the most common outcome, so it is too close a call to treat as a meaningful warning sign. By 40 feet, the data is clear enough that three-putts are happening often enough to be treated as a real risk. The approach shot that leaves the ball at 40 feet or beyond is a contributing factor to any subsequent three-putt, not a definitive cause. Tiger 5 Failure 1 (three-putt) remains classified in the putting segment, but A2 provides the causal context explaining why three-putt rates are elevated for a given player.

A2 is also the primary driver behind Tiger 5 Failure 4, a bogey where the approach shot started inside 125 yards. Because A2 covers the full 50 to 150 yard range, it directly spans this failure's starting distance window. A depressed A2 scoring position rate is the clearest early warning sign for elevated Failure 4 counts.

The two sub-bands, 50 to 100 yards and 100 to 150 yards, use identical thresholds but let a coach see where within the short approach range a player's scoring position rate is strongest or weakest.

A3Approach Precision Rate

Normalized precision rate. 50 to 200 yards. Fairway and tee lies.

Spec

A3 measures the rate at which approach shots across the full 50 to 200-yard range achieve a normalized precision standard: end distance in feet must be within 20% of starting distance in yards. This formulation, the 20% rule, adapts the Broadie proximity benchmark concept into a distance-normalized precision standard applicable across the full approach range.

The unit distinction is deliberate. Expressing end distance in feet while starting distance is measured in yards produces a threshold that scales with distance in a way that reflects genuine scoring expectations. From 100 yards, 20% yields a 20-foot threshold, the same reference used by Broadie as a standard proximity benchmark and the same threshold used in A2 for on-green scoring positions. From 150 yards, the threshold becomes 30 feet; from 75 yards, 15 feet; from 200 yards, 40 feet. These translate cleanly to the putting expected score table: at 20 feet the expected putts are 1.88, at 30 feet 1.99, at 40 feet 2.07.

Table 4. A3 Precision Threshold: 20% Rule Reference

A3 differs from A2 in three important ways. First, A3 applies across the full 50 to 200-yard range including the long approach zone covered by A1, while A2 is restricted to 50 to 150 yards. Second, A3 is surface-agnostic: end distance from the pin is the only variable, regardless of whether the ball finished on the green, fringe, or in rough. Third, A3 captures a normalized consistency story rather than an absolute scoring position story: a player whose precision rate is high but A2 scoring position rate is low has the ball distribution to create positions but is converting them at below-expectation rates, possibly due to target selection or course management errors rather than ball-striking deficiency.

The 20% multiplier was calibrated empirically against the expected score table. A 10% multiplier, equivalent to Broadie's Tour proximity standard, produces SG values above +0.200 at every distance, representing consistently elite execution that would apply to very few competitive amateur shots. A 25% multiplier produces average SG slightly negative to the baseline. The 20% multiplier sits at SG of 0.00 to −0.040 in the core 75 to 150-yard range, representing genuine average execution for a +3 player, the correct calibration point for a baseline-level quality threshold.

The Tiger 5 connection follows the same attribution logic as A1: Failures 1, 2, and 4 when the approach shot records the lowest SG value on the hole. A3 additionally serves as a secondary explanatory signal for Tiger 5 Failure 3: a player whose A3 rate is depressed is systematically leaving the ball in two-putt and three-putt territory across the full approach range.

A4Approach Penalty Rate

Penalty rate. 50 to 230 yards. All playable starting lies.

Spec

A4 is the only approach driver with a guaranteed, rule-defined scoring cost. Every other driver measures probabilistic damage: a recovery lie end position probably leads to bogey, poor proximity probably creates three-putt risk, an obstructed miss probably costs a stroke. A penalty stroke definitionally adds one shot to the score. This certainty elevates A4 to priority diagnostic status: even a penalty rate of one or two events per round represents compounding scoring damage that dwarfs the probabilistic costs captured by other drivers.

The decision to include Rough and Sand starting lies in A4, departing from the skill driver convention of Tee and Fairway only, reflects the different purpose of risk drivers. A1 and A3 exclude rough and sand because lie variance obscures skill measurement. A4 includes them because its purpose is to identify when a player's approach play is generating penalty-equivalent outcomes, including from compromised positions.

Table 5. Penalty SG Cost by Starting Distance (recovery lie reference)

The extended distance boundary of 230 yards, compared to 200 yards for skill drivers A1 and A3, accounts for the inclusion of rough and sand starting lies. A player in rough at 215 yards on a par 5 who attempts the green aggressively and finds a penalty area is exactly the scenario A4 is designed to identify.

For Tiger 5 attribution, A4 connects primarily to Failure 2 (double bogey or worse), the most frequent scoring consequence of approach penalties. It also connects to Failure 1 (par 5 bogey) when the approach shot was a second shot from rough or sand, and to Failure 4 (bogey inside 125 yards) in the less common case where a penalty shot originated inside 125 yards.

The coaching distinction between execution penalties and decision-making penalties is the most actionable signal A4 provides. Penalties from Tee and Fairway starting lies suggest execution failures. Penalties from Rough and Sand starting lies suggest decision-making failures, where the player chose to attempt a low-probability shot from a compromised position. Separating the A4 population by starting lie transforms a simple penalty count into a diagnostic that points directly toward either swing mechanics work or course management strategy intervention.

A5Approach Obstruction Rate

Obstruction rate. 50 to 230 yards. All playable starting lies. No penalty.

Spec

A5 captures the non-penalty approach shots that functionally destroy a hole without incurring a formal rules penalty. It is the approach segment equivalent of the driving obstruction rate: shots that do not trigger a penalty but end in positions that severely compromise the player's next shot, either through physical restriction (Recovery end lie) or extreme distance from the target (end distance beyond 25% of starting distance).

The threshold is set at 25% of starting distance rather than a fixed yardage, so the standard means the same thing at every approach distance. At 100 yards, 25% is 25 yards, producing SG of −0.810, a round-damaging outcome that creates bogey probability in excess of 80% for a +3 competitive amateur. At 60 yards, 25% is 15 yards, producing SG of −0.690. At 200 yards, 25% is 50 yards, producing SG of −0.580.

Table 6. A5 Obstruction SG Cost by Starting Distance

The recovery end lie trigger captures a qualitatively different failure mode from the distance threshold. A shot ending in a recovery position, such as trees, thick rough, or an unplayable lie, has not simply missed far from the pin; it has ended in a position that physically restricts the next shot's options. Recovery lies from approach distances cost between −0.620 and −1.380 strokes depending on starting distance. The distinction between a recovery lie and a rough lie at a similar distance from the pin is not proximity, it is the constraint on the subsequent shot.

The inclusion of rough and sand starting lies extends A5's diagnostic reach into decision-making territory. High A5 rates from Tee and Fairway starting lies point toward a ball-striking issue. High A5 rates from Rough and Sand starting lies point toward a strategic issue, where the player is choosing to attack from compromised positions. Par 5 second shots from rough are a particularly common A5 contributor: the player attempts the green in two from an unfavorable lie, misses significantly, and faces a recovery or long-distance chip that turns a likely birdie hole into a par-at-best proposition.

A5 is most strongly associated with two Tiger 5 failures. Failure 1 (par 5 bogey) is the most common outcome, since obstruction-level second shots on par 5 holes are among the most frequent pathways to a par 5 bogey. Failure 2 (double bogey or worse) follows closely, when recovery from an obstructed position requires multiple shots to escape.

Discussion: Framework Integration and Coaching Application

The Three-Lens Structure

The five drivers are organized into three analytical lenses that serve distinct diagnostic purposes. The skill drivers, A1 and A3, measure pure execution quality from controlled lies, providing a clean signal of ball-striking capability independent of course management decisions. The performance driver, A2, measures scoring position creation from all playable short approach lies, capturing the translation of ball-striking skill into actual scoring opportunities. The risk drivers, A4 and A5, measure damage and decision-making outcomes from all playable lies, surfacing the tail-risk events that disproportionately drive bogey and double bogey counts.

These three lenses answer fundamentally different coaching questions. The skill drivers answer: can the player execute approach shots at the required quality level from favorable lies? The performance driver answers: is the player converting ball-striking ability into scoring positions, including from the compromised lies that competitive rounds inevitably produce? The risk drivers answer: is the player making decisions from rough and sand that generate catastrophic approach outcomes, and if so, is the problem execution or strategy?

A comprehensive approach diagnosis requires readings from all three lenses. A player with strong skill driver rates but weak performance rates may have a course management problem: they execute well on the range and in ideal conditions but fail to convert in the real-world complexity of competitive play. A player with strong performance rates but elevated risk driver rates may be playing an aggressive style that generates scoring positions frequently but also generates costly failures at a rate that undermines overall scoring. A player with uniform weakness across all five drivers has a fundamental ball-striking problem that no amount of strategic adjustment will solve.

Tiger 5 Integration

The Tiger 5 framework tracks five specific failure categories that account for the majority of scoring damage in competitive amateur rounds: any three-putt, any missed green short game failure, any par 5 bogey, any bogey when the approach started inside 125 yards, and any double bogey or worse. The five approach drivers connect to these failures through root cause attribution, providing the diagnostic bridge between approach segment performance and actual scoring damage.

Table 7. Tiger 5 Attribution Summary

Tiger 5 Failure 5 (missed green short game failure) is deliberately excluded from approach attribution. This failure type has an explicit root cause in the short game segment: the player missed the green and failed to get up and down. While a poor approach shot may have contributed to the difficulty of the short game situation, attributing the failure to approach would misrepresent the causal structure. The short game segment owns the failure; the approach segment context is captured separately through A2 and A3 performance data.

The three-putt contributing factor convention requires particular attention in coaching application. When a coach sees elevated Tiger 5 Failure 3 counts alongside depressed A2 scoring position rates, the causal chain runs from approach shots not finding scoring positions, to the ball being left at 40-plus feet on the green, to elevated three-putt exposure, to Tiger 5 Failure 3 events accumulating. The intervention is in the approach segment, specifically proximity improvement, not the putting segment, even though the failure is formally classified as a putting event.

Sample Size and Statistical Stability

The PlayerPath framework is designed for competitive amateur golfers with limited round counts, typically 20 to 40 competitive rounds per season for a college-level player. This creates a genuine challenge: the smaller the shot population, the greater the variance in rate-based metrics, and the greater the risk of misdiagnosing random variation as systematic performance patterns.

Two principles govern sample size application. First, shot frequency is the correct filter for determining when a metric is stable enough to act upon, not round count. A player who hits 15 short approach shots per round accumulates a meaningful A2 population more rapidly than a round count alone suggests. Second, scoring materiality determines the minimum threshold for action: A4 and A5 are event-based metrics where even 3 to 5 events over 5 rounds represent a pattern worth addressing, because each event carries guaranteed or near-guaranteed scoring damage. Rate-based skill metrics (A1, A2, A3) require a minimum population of approximately 20 to 30 qualifying shots per band before rates are stable enough for diagnostic conclusions.

The dashboard implementation reflects these principles: driver cards display sample size indicators when populations fall below threshold, and the trend line over the most recent 5 rounds is presented alongside the season-to-date rate to distinguish recent form from persistent patterns.

Player Archetypes: Approach Performance Profiles

One of the most useful applications of the five-driver framework is pattern recognition across driver combinations. Individual driver rates tell you what is happening; the relationship between drivers tells you what kind of player you are dealing with and which lever to pull first. Four approach performance archetypes cover the majority of competitive amateur profiles a coach will encounter.

Green-Hitter, Low Precision. Strong A1 GIR rate and acceptable A3 precision rate, but a weak A2 scoring position rate. They find the green regularly but consistently miss the scoring zone, leaving the ball at 35 to 50 feet rather than inside 20 feet. Their SG Approach is mildly negative, their three-putt count is elevated, and Tiger 5 Failure 3 events are disproportionately present. Because A2 is the primary driver behind Failure 4, this player's Failure 4 count also tends to run high, even though their Failure 1 count stays close to average since A1 remains strong. The coaching conversation is about target selection and the difference between a green-finding mentality and a scoring-position mentality: from 100 to 150 yards, the standard should be inside 20 feet on the green or inside 6 yards off it, not simply somewhere on the putting surface.

Penalty-Prone Aggressor. Reasonable A1 and A2 rates on clean-lie shots, but elevated A4 and A5 rates, particularly from rough and sand starting lies. Their SG Approach variance is high: great rounds alongside catastrophic ones. Tiger 5 Failures 1 and 2 are the dominant failure signature. The critical diagnostic step is separating the A4 and A5 populations by starting lie. If penalties and obstructions cluster in the rough and sand population, the problem is decision-making. If they cluster in the Tee and Fairway population, the problem is execution. These are different interventions: the former calls for a course management conversation about acceptable risk from rough; the latter calls for a ball-striking and miss-pattern conversation.

Wedge Specialist, Long Iron Weakness. The inverse of the typical amateur profile. Strong A2 scoring position rate from 50 to 150 yards, but A1 GIR rate from 150 to 200 yards, particularly Band 2 (175 to 200 yards), is significantly below baseline. SG Approach is negative but concentrated in the long approach band. Tiger 5 Failure 1 (par 5 bogey) is the dominant signature, since second shots from 175 to 200 yards are frequently missed. The coaching intervention is specific to long iron and utility club execution, often addressable through trajectory adjustments, carry distance calibration, or strategic lay-up decisions.

Consistent Baseline Player. All five drivers within a narrow band around the +3 average, with no dramatic strength or weakness, and SG Approach close to zero. This player is not the coaching priority in a team context, but they are often the most improvable individual because their ceiling is defined by the absence of a clear ceiling. For the Consistent Baseline Player, A2 is almost always the highest-leverage starting point: the proximity premium is consistent, large, and achievable through target selection changes alone, independent of swing mechanics improvement.

Relationship to the PlayerPath Driving Segment

The approach drivers do not exist in isolation. The quality of approach shot opportunities is determined upstream by driving performance. A player who consistently finds rough from the tee will face a systematically different approach shot population than one who finds fairways: the A2 rough population will be larger, the A5 obstruction events more frequent from rough starts, and the A4 penalty risk elevated on aggressive approach attempts from compromised lies. This upstream dependency is acknowledged in the framework through the scope design of A2, A4, and A5, all of which include rough starting lies precisely so the approach segment's performance under realistic competitive conditions is captured.

Conclusion: Five Drivers, One Question

The five PlayerPath approach drivers, Long Approach GIR, Short Approach Scoring Position, Approach Precision Rate, Approach Penalty Rate, and Approach Obstruction Rate, collectively answer a single question that SG Approach alone cannot: why is the approach segment performing as it is, and where should a coach and player invest practice time to change it?

SG Approach will tell you a player is losing 1.2 strokes per round on approach shots. The five drivers will tell you whether those strokes are being lost because the player cannot find the green from 175 yards, cannot create proximity inside 100 yards, has a precision distribution that consistently leaves the ball in two-putt territory, takes approach penalties from aggressive play in rough, or generates recovery-lie outcomes from obstructed second shots. These are different problems requiring different conversations, different practice structures, and different timelines for improvement.

The framework is built on the conviction, shared with Broadie's foundational work and reinforced by 200 million tracked amateur shots in the Shot Scope dataset, that fewer, better questions outperform raw statistical volume. Not the fifteen approach statistics a tracking device can generate, but the five causal inputs that explain why the number that matters is what it is. That is what PlayerPath is for.

References

Broadie, M. (2012). Assessing Golfer Performance on the PGA Tour. Interfaces, 42(2), 146 to 165. Columbia Business School. Foundational strokes gained methodology and ShotLink data framework.

Broadie, M. (2014). Every Shot Counts. Gotham Books. Applied strokes gained framework for amateur golf analysis and proximity benchmarks.

PGA Tour ShotLink. Shot-level tracking data used as the basis for strokes gained baseline tables. All Tour benchmarks adjusted to +3 competitive amateur baseline for this framework.

Shot Scope (2023). The Ultimate Golfer's Guide. Published eBook. Performance benchmarks and handicap comparisons from 200+ million tracked amateur shots. shotscope.com

Arccos Golf. Proximity and GIR benchmark data by handicap level from sensor-tracked amateur rounds. Cited in approach shot strategy analysis. arccosgolf.com

Data Golf. Strokes gained, proximity, and GIR breakdown across six yardage buckets for professional tour data. datagolf.com

Fawcett, S. / DECADE Golf. Course management and target selection framework. Golf Digest methodology references. Cited in approach shot strategy and A5 decision-making analysis.

Golf Insider UK (2024). Approach play statistics: GIR percentage and proximity benchmarks by handicap level, citing PGA Tour, ShotScope, and TrackMan data. golfinsideruk.com