Golf Performance Metrics Explained
Every number VectorGOLF tracks — from launch monitor data to scorecard stats to Tangent-enhanced analytics. Click any metric below to see what it means, why it matters, and how to use it to improve.
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Click any of the 28 metric cards to learn more
Carry in Golf: What It Is & Why It Matters
What Is Carry?
Carry distance is how far the ball travels through the air before it first touches the ground. It excludes roll. Your launch monitor measures this directly from ball speed, launch angle, and spin.
Units: yards
Why It Matters
Carry is your true yardage—what you need for club selection. Roll varies with conditions; carry is consistent. Knowing your carry for each club is the foundation of course management.
Typical Ranges
Driver: 250-280 yards (scratch male). 7-iron: 165-175 yards. Wedges: 100-130 yards depending on loft.
Common Issues
Too short: low ball speed, poor contact, or excess spin. Too long: hot conditions or misread. Inconsistent carry across sessions suggests contact or swing path issues.
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Total Distance in Golf: What It Is & Why It Matters
What Is Total Distance?
Total distance is carry plus roll. It's the full distance the ball travels from impact to where it comes to rest.
Units: yards
Why It Matters
On firm fairways, total can exceed carry significantly. For approach shots, carry matters more. For drives, total helps with hole strategy.
Typical Ranges
Typically 5-15 yards more than carry on dry fairways. Wet conditions reduce roll.
Common Issues
Excess back spin reduces roll. Low launch can increase roll. Hard greens make total less predictable.
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Club Speed in Golf: What It Is & Why It Matters
What Is Club Speed?
Club speed is the velocity of the club head at impact, measured in miles per hour. It's the raw power input before efficiency (smash factor) is applied.
Units: mph
Why It Matters
Club speed sets the ceiling for ball speed. More speed means more distance potential—but only if contact is clean. Speed without control increases dispersion.
Typical Ranges
Driver: 90-110 mph (amateurs), 115+ (tour). 7-iron: 75-90 mph. Wedges: 70-85 mph.
Common Issues
Swinging harder often reduces smash factor. Focus on center contact first, then speed. Age and flexibility affect max speed.
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Ball Speed in Golf: What It Is & Why It Matters
What Is Ball Speed?
Ball speed is the velocity of the ball immediately after impact. It's the result of club speed, contact quality (smash factor), and club design.
Units: mph
Why It Matters
Ball speed directly drives distance. It's the most reliable predictor of carry. Improving ball speed—through better contact or more club speed—is the primary lever for distance gains.
Typical Ranges
Driver: 140-170 mph. 7-iron: 110-125 mph. Ball speed is typically 1.3-1.5x club speed for irons.
Common Issues
Low ball speed with high club speed = poor contact (low smash). Off-center hits lose significant speed.
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Back Spin in Golf: What It Is & Why It Matters
What Is Back Spin?
Back spin is the rotation of the ball around a horizontal axis perpendicular to the flight direction. It creates lift and affects trajectory and stopping power.
Units: rpm
Why It Matters
Back spin controls trajectory height and how much the ball stops on the green. Too little: ball runs out, hard to hold greens. Too much: ballooning, loss of distance, wind vulnerability.
Typical Ranges
Driver: 2,000-3,000 rpm. 7-iron: 6,000-7,500 rpm. Wedges: 8,000-10,000+ rpm.
Common Issues
Excess back spin: steep attack, high dynamic loft, or thin contact. Low back spin: shallow path, delofted face, or fat contact.
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Side Spin in Golf: What It Is & Why It Matters
What Is Side Spin?
Side spin is the rotation that makes the ball curve left or right in flight. It's created by the difference between club path and face angle—the D-Plane relationship.
Units: rpm
Why It Matters
Side spin determines shot shape. High side spin = more curve = more dispersion. Minimizing side spin (while controlling start direction) is key to consistency.
Typical Ranges
Ideal: under 200-250 rpm for most shots. Slices and hooks: 500-1,500+ rpm.
Common Issues
High side spin: face and path misaligned. Face-to-path over 2-3° creates significant curve. Goal: face and path closer together.
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Horizontal Launch Angle in Golf: What It Is & Why It Matters
What Is Horizontal Launch Angle?
HLA (Horizontal Launch Angle) is the initial direction the ball leaves the clubface, relative to the target line. Negative = left, positive = right.
Units: degrees
Why It Matters
HLA largely determines where the ball starts. Face angle at impact is the primary driver. For a straight shot, HLA should be near zero.
Typical Ranges
Target: ±1.5° for consistency. More than 2-3° off = significant miss.
Common Issues
HLA left: face closed at impact. HLA right: face open. Often correlates with face-to-target. Alignment and path affect face delivery.
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Launch Angle in Golf: What It Is & Why It Matters
What Is Launch Angle?
Launch angle (VLA—Vertical Launch Angle) is the angle at which the ball leaves the clubface relative to the ground. It's a key driver of trajectory and distance.
Units: degrees
Why It Matters
Launch angle, combined with spin, determines peak height and carry. Too low: ball runs out, loses distance. Too high: balloons, loses distance into wind.
Typical Ranges
Driver: 12°-16°. 7-iron: 16°-19°. Wedges: 20°-28°.
Common Issues
Low launch: delofted face, steep attack, or hitting down too much. High launch: adding loft, thin contact, or high spin.
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Descent Angle in Golf: What It Is & Why It Matters
What Is Descent Angle?
Descent angle is the angle at which the ball approaches the ground when it lands. Steeper = more stopping power on greens.
Units: degrees
Why It Matters
Descent angle determines how much the ball runs after landing. Steep descent (40°+) holds greens. Shallow descent (under 35°) runs out, especially on firm surfaces.
Typical Ranges
Approach shots: 40°-50° ideal for holding greens. Driver: 35°-42°. Wedges: 45°-55°.
Common Issues
Shallow descent: low launch or low spin. Ball runs through greens. Steep descent: high launch and spin—good for approaches, can cost driver distance.
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Face to Target in Golf: What It Is & Why It Matters
What Is Face to Target?
Face to Target is the direction the clubface points at impact relative to the target line. It's the primary driver of where the ball starts (HLA).
Units: degrees
Why It Matters
Face to target controls start direction. For a straight shot at the target, face should point at the target. Even small deviations (2-3°) cause significant misses.
Typical Ranges
Target: ±1° for precision. More than 2° = noticeable miss direction.
Common Issues
Face closed: ball starts left. Face open: ball starts right. Often a grip, alignment, or release timing issue.
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Face to Path in Golf: What It Is & Why It Matters
What Is Face to Path?
Face to Path is the difference between where the face points and where the club is moving. It's the D-Plane key that determines spin axis and shot curve.
Units: degrees
Why It Matters
Face to path drives side spin and curve. Face left of path = draw/hook. Face right of path = fade/slice. Smaller face-to-path = less curve = tighter dispersion.
Typical Ranges
Target: 0° to 2° for controlled curve. Over 3° = significant curve and dispersion.
Common Issues
Large face-to-path: path and face out of sync. Often a sequencing or release issue. The Kinetic Divergence Audit in VectorGOLF reports identifies the primary leak.
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Smash Factor in Golf: What It Is & Why It Matters
What Is Smash Factor?
Smash factor is ball speed divided by club speed. It measures impact efficiency—how much of your club speed transfers to the ball. Perfect contact maximizes smash.
Why It Matters
Smash factor reveals contact quality. Same club speed with higher smash = more distance. Low smash means you're leaving yards on the table from off-center or poor contact.
Typical Ranges
Driver: 1.45-1.50 (max ~1.50). 7-iron: 1.38-1.42. Wedges: 1.25-1.35.
Common Issues
Low smash: toe/heel hits, thin, or fat. Center contact is the fix. Can't exceed theoretical max for the club.
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Average Score: What It Is & Why It Matters
What Is Average Score?
Average score is the mean of your 18-hole gross scores across all tracked rounds. It is the most fundamental measure of overall playing ability.
Units: strokes per 18 holes
Why It Matters
Average score captures the full picture — driving, approach, short game, and putting. It is the single best number for tracking improvement over time and setting realistic goals.
Typical Ranges
Scratch: 72. Single-digit handicap: 75-82. Mid-handicap: 85-95. High-handicap: 100+.
Common Issues
Blowup holes inflate averages more than steady bogey golf. Tracking eliminates selective memory — you see the real number, not the number you remember.
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Greens in Regulation (GIR): What It Is & Why It Matters
What Is GIR?
GIR (Greens in Regulation) is the percentage of holes where your ball reaches the putting surface in the expected number of strokes: par minus two. On a par 4, that means on the green in 2. Par 3: in 1. Par 5: in 3.
Units: percentage
Why It Matters
GIR is the most statistically correlated metric to scoring. More greens hit = more birdie putts and fewer scrambles needed. It reflects the combined quality of your tee shots and approach play.
Typical Ranges
Tour: 65-70%. Scratch: 55-60%. Mid-handicap (15): 30-40%. High-handicap (25+): 10-20%.
Common Issues
Low GIR from poor iron play (distance control, accuracy) or poor driving (leaving bad angles). Improving GIR by even 5% can drop your average score by 2-3 strokes.
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Fairway Hit %: What It Is & Why It Matters
What Is Fairway Hit %?
Fairway Hit % measures how often your tee shot on par 4s and par 5s lands in the fairway. It gauges driving accuracy independent of distance.
Units: percentage
Why It Matters
Hitting fairways gives you clean lies, better angles, and more club options for approach shots. Missing fairways leads to penalties, recovery shots, and higher scores. Consistently hitting 60%+ keeps you in play.
Typical Ranges
Tour: 60-70%. Scratch: 55-65%. Mid-handicap: 40-55%. High-handicap: 25-40%.
Common Issues
Low fairway % often points to a dominant miss direction (slice, hook). Check your Miss Right and Miss Left percentages to identify the pattern. Equipment (driver loft, shaft) can also help.
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Miss Right %: What It Is & Why It Matters
What Is Miss Right %?
Miss Right % is the percentage of tee shots (par 4s and par 5s) that miss the fairway to the right. Combined with Miss Left %, it reveals your dominant miss pattern.
Units: percentage of fairway misses
Why It Matters
Knowing your miss direction is essential for course strategy and swing diagnosis. A high miss-right % (for a right-handed golfer) typically indicates an open face or out-to-in path — the classic slice pattern. This data helps you aim smarter and practice with purpose.
Typical Ranges
Balanced: under 15% each direction. Dominant miss: 20%+ one side. Severe: 30%+ one side.
Common Issues
Persistent miss-right: open face at impact, weak grip, or out-to-in swing path. Check Face to Target and Face to Path in your launch monitor data for the root cause.
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Miss Left %: What It Is & Why It Matters
What Is Miss Left %?
Miss Left % is the percentage of tee shots (par 4s and par 5s) that miss the fairway to the left. The mirror of Miss Right %, it completes your directional miss profile.
Units: percentage of fairway misses
Why It Matters
A high miss-left % (for a right-handed golfer) suggests a closed face or strong in-to-out path — the hook pattern. This is critical for aim strategy: if you miss left 25% of the time, you should aim further right on tight holes.
Typical Ranges
Balanced: under 15% each direction. Dominant miss: 20%+ one side. Severe: 30%+ one side.
Common Issues
Persistent miss-left: closed face, strong grip, or excessive in-to-out path. If you also have high side spin in your launch data, the face-path relationship is the root cause.
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Putts per Round: What It Is & Why It Matters
What Is Putts per Round?
Putts per round is the average total number of putts across 18 holes. It is the simplest measure of putting performance — but it can be misleading without context from GIR.
Units: putts per 18 holes
Why It Matters
Putting accounts for roughly 40% of all strokes. Reducing putts per round even by 1-2 has a direct impact on scoring. However, more GIRs usually means more putts (longer first putts), so always evaluate putts in context.
Typical Ranges
Tour: 28-29. Scratch: 29-31. Mid-handicap: 32-36. High-handicap: 36+.
Common Issues
High putts/round: poor distance control on lag putts, three-putts, or poor green reading. Low putts/round can also mean you aren't hitting greens (chipping close and one-putting). Context matters — check Putts GIR and Putts nGIR.
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Putts nGIR (Not Green in Regulation): What It Is & Why It Matters
What Is Putts nGIR?
Putts nGIR is the average number of putts on holes where you missed the green in regulation. It measures your ability to get up-and-down — chip close and save par (or bogey).
Units: putts per hole (missed greens only)
Why It Matters
Most amateurs miss more greens than they hit. If your nGIR putting average is below 2.0, your short game is bailing you out. Above 2.2, you are leaving strokes on the table when you miss the green.
Typical Ranges
Tour: 1.6-1.8. Scratch: 1.8-2.0. Mid-handicap: 2.0-2.3. High-handicap: 2.3+.
Common Issues
High nGIR putts: poor chipping (leaving long second putts) or poor short-range putting. Improving chip-to-a-distance to under 10 feet brings this number down fast.
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Putts GIR (Green in Regulation): What It Is & Why It Matters
What Is Putts GIR?
Putts GIR is the average number of putts on holes where you hit the green in regulation. It is the truest measure of putting skill because it eliminates short-game variability — you are putting from regulation distance.
Units: putts per hole (GIR holes only)
Why It Matters
When you hit a GIR, your first putt is typically 20-40 feet. Averaging under 1.8 putts per GIR means you're making birdie putts or consistently two-putting. Above 2.0 means three-putts are killing your scores.
Typical Ranges
Tour: 1.72-1.78. Scratch: 1.78-1.85. Mid-handicap: 1.85-2.0. High-handicap: 2.0+.
Common Issues
High Putts GIR: poor lag putting (leaving 4+ feet for second putt), poor green reading, or inconsistent speed control. Focus on getting first putts inside 3 feet.
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Strokes Gained Total: What It Is & Why It Matters
What Is Strokes Gained Total?
Strokes Gained (SG) Total is the sum of all strokes gained categories: tee, approach, short game, and putting. It measures how many strokes per round you gain (or lose) compared to a baseline — typically scratch or PGA Tour average.
Units: strokes per round (positive = better than baseline)
Why It Matters
SG Total is the gold standard for evaluating overall performance. Unlike raw score, it accounts for course difficulty and shot context. A positive SG Total means you are outperforming the baseline — and the breakdown shows exactly where.
Typical Ranges
Tour average: 0. Top tour players: +2 to +4. Scratch amateur: -1 to 0. Mid-handicap: -4 to -8. High-handicap: -10+.
Common Issues
SG Total is only as good as its components. One strong area can mask a weakness. Always break it down into SG Tee, Approach, Short, and Putting to find where to practice.
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Strokes Gained Tee: What It Is & Why It Matters
What Is Strokes Gained Tee?
SG Tee measures how much your tee shots (typically drives on par 4s and par 5s) gain or lose compared to the baseline. It factors in both distance and accuracy — not just whether you hit the fairway.
Units: strokes per round
Why It Matters
Driving is the highest-leverage shot category. A good tee shot leaves a shorter, cleaner approach. SG Tee captures this better than fairway % alone because it accounts for distance — a 280-yard fairway hit gains more than a 220-yard fairway hit.
Typical Ranges
Tour leaders: +1.0 to +1.5. Tour average: 0. Scratch: -0.5 to 0. Mid-handicap: -1.0 to -2.5.
Common Issues
Negative SG Tee: usually distance or penalty strokes from OB/water. Short but accurate drivers can still have positive SG Tee if they avoid big misses.
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Strokes Gained Approach: What It Is & Why It Matters
What Is Strokes Gained Approach?
SG Approach measures how much your approach shots (typically the 2nd shot on par 4s, 2nd/3rd on par 5s, tee shots on par 3s) gain or lose vs. the baseline. It captures both distance to the pin and whether you hit the green.
Units: strokes per round
Why It Matters
Approach play is where the best players separate themselves. PGA Tour data consistently shows that SG Approach has the highest correlation with money earned. Good approach play means more GIRs, closer birdie putts, and fewer scrambles.
Typical Ranges
Tour leaders: +1.0 to +1.5. Tour average: 0. Scratch: -0.5 to 0. Mid-handicap: -1.5 to -3.0.
Common Issues
Negative SG Approach: poor distance control, misses short-sided, or wrong club selection. Launch monitor data (carry, back spin, descent angle) feeds directly into improving approach quality.
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Strokes Gained Short Game: What It Is & Why It Matters
What Is Strokes Gained Short Game?
SG Short Game measures how your chips, pitches, and bunker shots (within ~50 yards of the green, excluding putts) compare to the baseline. It captures scrambling ability — turning missed greens into pars.
Units: strokes per round
Why It Matters
Most amateurs miss 50-70% of greens. Your short game determines whether those misses become bogeys or pars. Positive SG Short Game means you are recovering better than the baseline — which directly saves strokes.
Typical Ranges
Tour leaders: +0.5 to +1.0. Tour average: 0. Scratch: -0.3 to 0. Mid-handicap: -0.5 to -1.5.
Common Issues
Negative SG Short: chunked chips, skulled pitches, or poor distance control from bunkers. Focus on getting chips within 6 feet of the hole for an achievable one-putt.
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Strokes Gained Putting: What It Is & Why It Matters
What Is Strokes Gained Putting?
SG Putting measures how your putting performance compares to the baseline, accounting for putt distance. Unlike total putts, it gives credit for making long putts and penalizes missing short ones — distance-adjusted putting quality.
Units: strokes per round
Why It Matters
Raw putts per round is misleading because it doesn't account for putt distance. SG Putting is the true putting metric. A player who two-putts from 40 feet every time has excellent SG Putting. A player who three-putts from 15 feet has terrible SG Putting.
Typical Ranges
Tour leaders: +0.5 to +1.0. Tour average: 0. Scratch: -0.3 to 0. Mid-handicap: -0.5 to -2.0.
Common Issues
Negative SG Putting: missing putts inside 8 feet, three-putting from 25+ feet, or inconsistent green reading. Lag putting (getting the first putt within 3 feet) is the fastest fix for most amateurs.
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Average Proximity: What It Is & Why It Matters
What Is Average Proximity?
Average proximity is the mean distance from the pin after all shots tracked by Tangent — across all shot types (drives, approaches, chips, etc.). It provides a general sense of how close your shots finish to the hole.
Units: feet
Why It Matters
Proximity to the pin is a leading indicator of scoring. Closer approach shots mean shorter putts, more birdies, and fewer three-putts. Tracking proximity over time shows whether your shot quality is improving.
Typical Ranges
Tour (approaches): 30-35 ft. Scratch amateur: 35-45 ft. Mid-handicap: 45-60 ft. This metric covers all shots, so typical values will be higher than approach-only proximity.
Common Issues
High average proximity: poor distance control, wrong club, or bad miss direction. Improving iron carry consistency and green reading directly reduces proximity.
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Approach Proximity: What It Is & Why It Matters
What Is Approach Proximity?
Approach proximity is the average distance from the pin after approach shots specifically — 2nd shot on par 4s, 3rd shot on par 5s, and tee shot on par 3s. This isolates your ability to attack pins when it matters most.
Units: feet
Why It Matters
Approach proximity is the single best predictor of birdie opportunities. Tour players average 30-35 feet on approaches. Getting under 40 feet consistently gives you makeable birdie putts and eliminates long lag putts that lead to three-putts.
Typical Ranges
Tour: 30-35 ft. Scratch amateur: 35-42 ft. Mid-handicap: 42-55 ft. High-handicap: 55+ ft.
Common Issues
High approach proximity: inconsistent carry distance, poor aim (short-siding yourself), or wrong club selection. Use your launch monitor carry data for each club to make smarter decisions on approach.
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Penalties per Round: What It Is & Why It Matters
What Is Penalties per Round?
Penalties per round is the average number of penalty strokes incurred across 18 holes. This includes OB, water, lost balls, and unplayable lies — shots that add strokes without advancing play.
Units: penalty strokes per 18 holes
Why It Matters
Penalty strokes are the highest-cost mistakes in golf. Every penalty is a full stroke added to your score with zero progress toward the hole. Reducing penalties from 2.0 to 0.5 per round is an instant 1.5-stroke improvement — often easier than gaining strokes through swing changes.
Typical Ranges
Tour: 0.2-0.5. Scratch: 0.3-0.8. Mid-handicap: 1.0-2.0. High-handicap: 2.0-4.0+.
Common Issues
High penalties: driver OB, water hazards on approach, or lost balls in the rough. Course management is the fix — lay up, aim away from trouble, and accept bogey over double. Know your miss pattern (Miss Right/Left) and play away from hazards on that side.
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