Join 4.8M+ golfers worldwide today. Download now!

Hole19 is the leading golf app for tracking scores, navigating courses with GPS precision, and unlocking performance insights.

Get 14 days free, then only €69,99/year.

Coefficient of Restitution

Measure of a club's spring-like effect at impact.

Glossary terms

Above the Hole Ace Address Aggregate Aim Line Albatross All Square Alternate Alternate Shot Amateur Status
Angle of Attack Approach Apron Back Nine Back Tees Back-weighting Backspin Ball Flight Laws Ball Marker Ball Position
Ball Speed Ball Washer Banana Ball Beach Belly Putter Below the Hole Bent Grass Best Ball Better Ball Big Dog
Bingo Bango Bongo Birdie Blade Block Bogey Bogey Golfer Bogey Rating Bounce Break Breakfast Ball
Bump and Run Bunker Cabbage Cap Carry Cart Path Only Casual Water Center of Gravity Chapman Chip
Choke Down Chunk Cleek Closed Face Coefficient of Restitution Compression Condor Course Handicap Course Rating Cross Bunker
Cup Cut Cut Line Dancing Dead Deceleration Density Rating Dimple Pattern Distance Control Divot
Divot Pattern Dog License Dogleg Dormie Double Bogey Double Cross Double Eagle Double Hit Draw Drive
Driver Drop Drop Zone Duck Hook Duff Eagle Effective Playing Length Entry Fee Equipment Rules ESR
Etiquette European Tour Even Par Exemption Expected Score Extra Hole Face Angle Face Insert Fade Fairway
Fairway Bunker Fairway Wood False Front Fat Shot Feather Ball First Cut First Tee Five Ball Flag Flag Stick
Flat Swing Flex Flier Float Flog Flop Shot Flourish Flush Follow Through Footprints in the Sand
Fore Fore Caddie Forecaddie Forward Press Forward Tees Four-Ball Foursome Fried Egg Front Nine Front Tees
Full Shot Function Gallery Gamble Gap Wedge Gimme GPS Grain Grand Slam Graphite Shaft
Green Green Committee Green Fee Green in Regulation (GIR)Green Reader Green Speed Greenkeeper Greenside Grip Groove
Gross Score Ground Under Repair (GUR)Grounding the Club Group Play Half Shot Half Turn Halved Handicap Handicap Allowance Handicap Index
Handle Hard Cap Hard Pan Hazard Head Cover Head Speed High Side Hole Hole High Hole in One
Hole Location Hole Out Home Course Honor Hook Hosel Hybrid Impact Impact Position Impact Zone
In Play In-Course Rating Index Initial Distance Insert Inside Path Inside the Leather Inspection Integrity Intended Line
Interlocking Grip International Golf Federation Inward Nine Iron Island Green Jab Jack Jarred Jaws Jerked
Jigger Joint Initiative Jump Junior Golf Just Short Kick Kick Point Kikuyu Kill Knee
Knock Down Knockdown Shot Known Value Knuckle Lag Lag Putting Landing Area Launch Angle Launch Monitor Lay Up
Laying the Sod Lead Edge Leaderboard Leading Edge League Play Lie Lie Angle Links Links Golf Lip
Lip Out Local Rules Loft Loft Angle Long Game Long Iron Loop Looper Lost Ball Low Point
LPGA Lucy Lunge Maintenance Major Championships Marker Marshal Match Play Maximum Score Medal Play
Member's Bounce Mid-Iron Minimum Number of Clubs Misclub Mixed Foursome Modified Stableford Monday Qualifier Most Likely Score Moving Day Mulled
Mulligan Municipal Nassau Native Area Nearest Point of Relief Net Double Bogey Net Score Niblick Nineteenth Hole No Card
Nobble Non-Conforming Normal Stance Number One Obscured Ball Obstacle Factors Official Guide Offset One Ball Rule One-Piece Takeaway
Open Championship Open Club Face Open Qualifying Open Stance Order of Merit Out of Bounds Outside Agency Outside Path Over the Top Overclub
Overhanging Branch Overlap Grip Pace of Play Par Par 3 Course Parallax Partner Path PCC Penalty Area
Penalty Stroke Perfect Round Perimeter Weighting PGA PGA Tour Pin Pin High Pin Position Pitch Pitch Mark
Pitching Wedge Pivot Play Through Player's Edition Playing Handicap Plugged Ball Plus Handicap Point of Entry Port Preferred Lies
Press Pro Shop Pro-Am Progressive Scoring Provisional Pull Pull Hook Pull Slice Push Push Cart
Push Hook Push Slice Put Back Putt Putter Putting Green Putting Surface Q-School Qualifying Qualifying Round
Quarter Quitting Quota R&A Rainsuit Range Range Finder Rating Ready Golf Recovery Shot
Red Stakes Reference Point Relief Restore Reverse Overlap Rhythm Rick Ringer Score Rip Roll
Rough Round Round Robin Routing Row Royal Rub of the Green Run Run Up Runner
Rutter Sand Save Sand Trap Sand Wedge Sandbagger Score Differential Scotch Foursomes Scramble Scratch Golfer Semi-Private
Senior Tees Shaft Shaft Flex Shamble Shank Short Game Short Side Shotgun Start Six-Six-Six Skin
Skull Slice Slope Rating Snap Hook Snowman Soft Cap Sole Spam Spikes Spin Rate
Split Tees Spray Spring Line Square Stableford Stack and Tilt Stance Stimpmeter Stroke Index Stroke Play
Stroke Saver Strong Sweet Spot Swingpath Take Relief Tap-in Target Line Teaching Professional Tee Tee Box
Tee Marker Tee Sheet Tee Time Tempo Ten-Shot Rule Texas Scramble Texas Wedge Three Ball Three Jack Three-Putt
Through Line Through the Green Thumbs Tier Tight Lie Toe Top Topped Tour Tour Sauce
Tournament Trajectory Transition Tree Line Triple Bogey Turn Under Par Undulation Uneven Lie Unplayable
Up and Down Uphill Lie USGA Utility Club Vale Validation Vardon Grip Variables Variance Vegas
Velocity Vent Vertical Groove VFT Virtual Club Fitting Visual Center Volume Volunteer Waggle Walk Through
Walking Course Waste Area Waste Bunker Water Hazard Weather Delay Wedge Weight Weight Port Wet Line Whiff
White Stakes Wind Cheater Window Winter Rules Wire-to-Wire Wolf Wood Worm Burner WR Wrist Cock
X Factor X Height X Out Yardage Yardage Book Yardage Marker Yellow Line Yellow Stakes Yield Yips
Zero Handicap Zinc Zip Zone Zone Defense Zone Hitting Zone Play Zone System Zoysia

Join 4.8M+ golfers worldwide today. Download now!

Hole19 is the leading golf app for tracking scores, navigating courses with GPS precision, and unlocking performance insights.